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< div class = "headertitle" > < div class = "title" > malloc_dbg.h File Reference< / div > < / div >
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< / div > <!-- header -->
< div class = "contents" >
< p > Header file that contains macros used to replace malloc/calloc and free.
< a href = "#details" > More...< / a > < / p >
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This graph shows which files directly or indirectly include this file:< / div >
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< div class = "center" > < iframe scrolling = "no" frameborder = "0" src = "../../dd/dd7/malloc__dbg_8h__dep__incl.svg" width = "328" height = "139" > < p > < b > This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.< / b > < / p > < / iframe >
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< p > < a href = "../../d2/ddd/malloc__dbg_8h_source.html" > Go to the source code of this file.< / a > < / p >
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Macros< / h2 > < / td > < / tr >
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< tr class = "memitem:a725f50ecaf1959d96de79b36b4788fee" > < td class = "memItemLeft" align = "right" valign = "top" > < a id = "a725f50ecaf1959d96de79b36b4788fee" name = "a725f50ecaf1959d96de79b36b4788fee" > < / a >
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#define  < / td > < td class = "memItemRight" valign = "bottom" > < b > malloc< / b > (bytes)      < a class = "el" href = "../../db/d84/malloc__dbg_8c.html#a37914d05ba1fe8848aa1b48cda719422" > malloc_dbg< / a > (bytes, __LINE__, __FILE__, __FUNCTION__)< / td > < / tr >
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< tr class = "memdesc:a725f50ecaf1959d96de79b36b4788fee" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > This macro replace the standard malloc function with malloc_dbg. < br / > < / td > < / tr >
< tr class = "separator:a725f50ecaf1959d96de79b36b4788fee" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:afdddaa949a93c1ef559a638e98f9c21b" > < td class = "memItemLeft" align = "right" valign = "top" > < a id = "afdddaa949a93c1ef559a638e98f9c21b" name = "afdddaa949a93c1ef559a638e98f9c21b" > < / a >
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#define  < / td > < td class = "memItemRight" valign = "bottom" > < b > calloc< / b > (elemCount, elemSize)      < a class = "el" href = "../../db/d84/malloc__dbg_8c.html#ab07f946b77155ca78d0e14e231a99f5d" > calloc_dbg< / a > (elemCount, elemSize, __LINE__, __FILE__, __FUNCTION__)< / td > < / tr >
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< tr class = "memdesc:afdddaa949a93c1ef559a638e98f9c21b" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > This macro replace the standard calloc function with calloc_dbg. < br / > < / td > < / tr >
< tr class = "separator:afdddaa949a93c1ef559a638e98f9c21b" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:a9cc854374299a1dd933bf62029761768" > < td class = "memItemLeft" align = "right" valign = "top" > < a id = "a9cc854374299a1dd933bf62029761768" name = "a9cc854374299a1dd933bf62029761768" > < / a >
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#define  < / td > < td class = "memItemRight" valign = "bottom" > < b > free< / b > (ptr)      < a class = "el" href = "../../db/d84/malloc__dbg_8c.html#a3f9195a04ac8e8a9868ee3e416db7e8c" > free_dbg< / a > (ptr)< / td > < / tr >
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< tr class = "memdesc:a9cc854374299a1dd933bf62029761768" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > This macro replace the standard free function with free_dbg. < br / > < / td > < / tr >
< tr class = "separator:a9cc854374299a1dd933bf62029761768" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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Functions< / h2 > < / td > < / tr >
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< tr class = "memitem:a37914d05ba1fe8848aa1b48cda719422" > < td class = "memItemLeft" align = "right" valign = "top" > void *  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d2/ddd/malloc__dbg_8h.html#a37914d05ba1fe8848aa1b48cda719422" > malloc_dbg< / a > (size_t bytes, int line, const char *filename, const char *functionName)< / td > < / tr >
< tr class = "memdesc:a37914d05ba1fe8848aa1b48cda719422" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > malloc_dbg function is a wrapper around the malloc function. < a href = "../../d2/ddd/malloc__dbg_8h.html#a37914d05ba1fe8848aa1b48cda719422" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:a37914d05ba1fe8848aa1b48cda719422" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:ab07f946b77155ca78d0e14e231a99f5d" > < td class = "memItemLeft" align = "right" valign = "top" > void *  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d2/ddd/malloc__dbg_8h.html#ab07f946b77155ca78d0e14e231a99f5d" > calloc_dbg< / a > (size_t elementCount, size_t elementSize, int line, const char *filename, const char *functionName)< / td > < / tr >
< tr class = "memdesc:ab07f946b77155ca78d0e14e231a99f5d" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > calloc_dbg function is a wrapper around the calloc function. < a href = "../../d2/ddd/malloc__dbg_8h.html#ab07f946b77155ca78d0e14e231a99f5d" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:ab07f946b77155ca78d0e14e231a99f5d" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:a3f9195a04ac8e8a9868ee3e416db7e8c" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d2/ddd/malloc__dbg_8h.html#a3f9195a04ac8e8a9868ee3e416db7e8c" > free_dbg< / a > (void *ptrToFree)< / td > < / tr >
< tr class = "memdesc:a3f9195a04ac8e8a9868ee3e416db7e8c" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > free_dbg function is used to free the memory allocated to a pointer. < a href = "../../d2/ddd/malloc__dbg_8h.html#a3f9195a04ac8e8a9868ee3e416db7e8c" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:a3f9195a04ac8e8a9868ee3e416db7e8c" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:abfd0a4452069af4cfefe4a5d037e92ef" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d2/ddd/malloc__dbg_8h.html#abfd0a4452069af4cfefe4a5d037e92ef" > printLeaks< / a > (void)< / td > < / tr >
< tr class = "memdesc:abfd0a4452069af4cfefe4a5d037e92ef" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > printLeaks function is used to print all the memory leaks. < a href = "../../d2/ddd/malloc__dbg_8h.html#abfd0a4452069af4cfefe4a5d037e92ef" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:abfd0a4452069af4cfefe4a5d037e92ef" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< / table >
< a name = "details" id = "details" > < / a > < h2 class = "groupheader" > Detailed Description< / h2 >
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< div class = "textblock" > < p > Header file that contains macros used to replace malloc/calloc and free. < / p >
< p > Macros malloc, calloc and free respectively calls malloc_dbg, calloc_dbg and free_dbg. malloc_dbg and calloc_dbg allocates memory using the "real" malloc and calloc and store the pointer returned (with additional informations) in a linked list. Thanks to this linked list, it is possible to check memory leaks. < / p > < dl class = "section author" > < dt > Author< / dt > < dd > < a href = "https://github.com/tinouduart33" target = "_blank" > tinouduart33< / a > < / dd > < / dl >
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< dl class = "section see" > < dt > See also< / dt > < dd > < a class = "el" href = "../../db/d84/malloc__dbg_8c.html" title = "This file contains malloc_dbg, calloc_dbg, free_dbg and printLeaks implementations." > malloc_dbg.c< / a > < / dd > < / dl >
< / div > < h2 class = "groupheader" > Function Documentation< / h2 >
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< a id = "ab07f946b77155ca78d0e14e231a99f5d" name = "ab07f946b77155ca78d0e14e231a99f5d" > < / a >
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< h2 class = "memtitle" > < span class = "permalink" > < a href = "#ab07f946b77155ca78d0e14e231a99f5d" > ◆   < / a > < / span > calloc_dbg()< / h2 >
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< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
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< td class = "memname" > void * calloc_dbg < / td >
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< td > (< / td >
< td class = "paramtype" > size_t  < / td >
< td class = "paramname" > < em > elementCount< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > size_t  < / td >
< td class = "paramname" > < em > elementSize< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > int  < / td >
< td class = "paramname" > < em > line< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > const char *  < / td >
< td class = "paramname" > < em > filename< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > const char *  < / td >
< td class = "paramname" > < em > functionName< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > calloc_dbg function is a wrapper around the calloc function. < / p >
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< p > This function calls calloc and allocates the number of bytes passed in the parameters. If the allocation succeeds then it add the pointer returned by malloc in the mem_info list. < / p > < dl class = "params" > < dt > Parameters< / dt > < dd >
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< table class = "params" >
< tr > < td class = "paramname" > elementCount< / td > < td > number of element to allocate < / td > < / tr >
< tr > < td class = "paramname" > elementSize< / td > < td > Size of each element < / td > < / tr >
< tr > < td class = "paramname" > line< / td > < td > Line number in the caller file < / td > < / tr >
< tr > < td class = "paramname" > filename< / td > < td > Caller file < / td > < / tr >
< tr > < td class = "paramname" > functionName< / td > < td > Caller function < / td > < / tr >
< / table >
< / dd >
< / dl >
< dl class = "section return" > < dt > Returns< / dt > < dd > Pointer returned by calloc if it's valid, NULL otherwhise. < / dd > < / dl >
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< div class = "fragment" > < div class = "line" > < span class = "lineno" > 175< / span > {< / div >
< div class = "line" > < span class = "lineno" > 176< / span > < span class = "keywordtype" > void< / span > * ptrToReturn = < a class = "code hl_define" href = "../../d2/ddd/malloc__dbg_8h.html#afdddaa949a93c1ef559a638e98f9c21b" > calloc< / a > (elementCount, elementSize);< / div >
< div class = "line" > < span class = "lineno" > 177< / span > < span class = "keywordflow" > if< / span > (!ptrToReturn)< / div >
< div class = "line" > < span class = "lineno" > 178< / span > {< / div >
< div class = "line" > < span class = "lineno" > 179< / span > < span class = "keywordflow" > return< / span > NULL;< / div >
< div class = "line" > < span class = "lineno" > 180< / span > }< / div >
< div class = "line" > < span class = "lineno" > 181< / span > < / div >
< div class = "line" > < span class = "lineno" > 182< / span > < span class = "comment" > // We must check atexitCalled value to know if we already called the function< / span > < / div >
< div class = "line" > < span class = "lineno" > 183< / span > < span class = "keywordflow" > if< / span > (!< a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#ad04afbbcb9f0f10bc7628ec4f0d7c950" > atexitCalled< / a > )< / div >
< div class = "line" > < span class = "lineno" > 184< / span > {< / div >
< div class = "line" > < span class = "lineno" > 185< / span > atexit(< a class = "code hl_function" href = "../../db/d84/malloc__dbg_8c.html#a2a47e4c38db8c00b80248e5535adf797" > printLeaks< / a > ); < span class = "comment" > // Used to call printLeaks when the program exit< / span > < / div >
< div class = "line" > < span class = "lineno" > 186< / span > < a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#ad04afbbcb9f0f10bc7628ec4f0d7c950" > atexitCalled< / a > = 1;< / div >
< div class = "line" > < span class = "lineno" > 187< / span > }< / div >
< div class = "line" > < span class = "lineno" > 188< / span > < / div >
< div class = "line" > < span class = "lineno" > 189< / span > < span class = "comment" > // Add a new element in the mem_info list< / span > < / div >
< div class = "line" > < span class = "lineno" > 190< / span > < a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > = < a class = "code hl_function" href = "../../db/d84/malloc__dbg_8c.html#a062aa89cafd39a97971a2eb22653ff2a" > addMemInfo< / a > (< a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > , ptrToReturn, elementCount * elementSize, line, filename, functionName);< / div >
< div class = "line" > < span class = "lineno" > 191< / span > < span class = "keywordflow" > if< / span > (!< a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > )< / div >
< div class = "line" > < span class = "lineno" > 192< / span > {< / div >
< div class = "line" > < span class = "lineno" > 193< / span > < a class = "code hl_define" href = "../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768" > free< / a > (ptrToReturn);< / div >
< div class = "line" > < span class = "lineno" > 194< / span > < span class = "keywordflow" > return< / span > NULL;< / div >
< div class = "line" > < span class = "lineno" > 195< / span > }< / div >
< div class = "line" > < span class = "lineno" > 196< / span > < / div >
< div class = "line" > < span class = "lineno" > 197< / span > < span class = "keywordflow" > return< / span > ptrToReturn;< / div >
< div class = "line" > < span class = "lineno" > 198< / span > }< / div >
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< div class = "ttc" id = "amalloc__dbg_8c_html_a062aa89cafd39a97971a2eb22653ff2a" > < div class = "ttname" > < a href = "../../db/d84/malloc__dbg_8c.html#a062aa89cafd39a97971a2eb22653ff2a" > addMemInfo< / a > < / div > < div class = "ttdeci" > mem_info * addMemInfo(mem_info *memoryInfo, void *ptrToReturn, size_t bytes, int line, const char *filename, const char *functionName)< / div > < div class = "ttdoc" > addMemInfo function add a memory allocation in the memoryInfo list.< / div > < div class = "ttdef" > < b > Definition:< / b > malloc_dbg.c:51< / div > < / div >
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< div class = "ttc" id = "amalloc__dbg_8c_html_a2a47e4c38db8c00b80248e5535adf797" > < div class = "ttname" > < a href = "../../db/d84/malloc__dbg_8c.html#a2a47e4c38db8c00b80248e5535adf797" > printLeaks< / a > < / div > < div class = "ttdeci" > void printLeaks()< / div > < div class = "ttdoc" > printLeaks function is used to print all the memory leaks.< / div > < div class = "ttdef" > < b > Definition:< / b > malloc_dbg.c:264< / div > < / div >
< div class = "ttc" id = "amalloc__dbg_8c_html_ad04afbbcb9f0f10bc7628ec4f0d7c950" > < div class = "ttname" > < a href = "../../db/d84/malloc__dbg_8c.html#ad04afbbcb9f0f10bc7628ec4f0d7c950" > atexitCalled< / a > < / div > < div class = "ttdeci" > int atexitCalled< / div > < div class = "ttdoc" > Another global variable.< / div > < div class = "ttdef" > < b > Definition:< / b > malloc_dbg.c:37< / div > < / div >
< div class = "ttc" id = "amalloc__dbg_8c_html_afebd751704cd878d2e4b88499519c6e3" > < div class = "ttname" > < a href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > < / div > < div class = "ttdeci" > mem_info * memoryInformation< / div > < div class = "ttdoc" > We use a global variable for the list so we can use it at any time.< / div > < div class = "ttdef" > < b > Definition:< / b > malloc_dbg.c:33< / div > < / div >
< div class = "ttc" id = "amalloc__dbg_8h_html_a9cc854374299a1dd933bf62029761768" > < div class = "ttname" > < a href = "../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768" > free< / a > < / div > < div class = "ttdeci" > #define free(ptr)< / div > < div class = "ttdoc" > This macro replace the standard free function with free_dbg.< / div > < div class = "ttdef" > < b > Definition:< / b > malloc_dbg.h:26< / div > < / div >
< div class = "ttc" id = "amalloc__dbg_8h_html_afdddaa949a93c1ef559a638e98f9c21b" > < div class = "ttname" > < a href = "../../d2/ddd/malloc__dbg_8h.html#afdddaa949a93c1ef559a638e98f9c21b" > calloc< / a > < / div > < div class = "ttdeci" > #define calloc(elemCount, elemSize)< / div > < div class = "ttdoc" > This macro replace the standard calloc function with calloc_dbg.< / div > < div class = "ttdef" > < b > Definition:< / b > malloc_dbg.h:22< / div > < / div >
< / div > <!-- fragment --> < div class = "dynheader" >
Here is the call graph for this function:< / div >
< div class = "dyncontent" >
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< div class = "center" > < iframe scrolling = "no" frameborder = "0" src = "../../d2/ddd/malloc__dbg_8h_ab07f946b77155ca78d0e14e231a99f5d_cgraph.svg" width = "238" height = "86" > < p > < b > This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.< / b > < / p > < / iframe >
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< / div >
< / div >
< / div >
< / div >
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< a id = "a3f9195a04ac8e8a9868ee3e416db7e8c" name = "a3f9195a04ac8e8a9868ee3e416db7e8c" > < / a >
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< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a3f9195a04ac8e8a9868ee3e416db7e8c" > ◆   < / a > < / span > free_dbg()< / h2 >
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< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > void free_dbg < / td >
< td > (< / td >
< td class = "paramtype" > void *  < / td >
< td class = "paramname" > < em > ptrToFree< / em > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > free_dbg function is used to free the memory allocated to a pointer. < / p >
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< p > This function free the memory pointed by the pointer passed in parameter. To free this pointer, we loop through the mem_info list and check if we find the pointer. Once it's found, the pointer is freed and the element is deleted from the list. < / p > < dl class = "params" > < dt > Parameters< / dt > < dd >
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< table class = "params" >
< tr > < td class = "paramname" > ptrToFree< / td > < td > Pointer that must be freed < / td > < / tr >
< / table >
< / dd >
< / dl >
< dl class = "section return" > < dt > Returns< / dt > < dd > Nothing. < / dd > < / dl >
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< div class = "fragment" > < div class = "line" > < span class = "lineno" > 209< / span > {< / div >
< div class = "line" > < span class = "lineno" > 210< / span > < a class = "code hl_struct" href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html" > mem_info< / a > * tmp = < a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > ;< / div >
< div class = "line" > < span class = "lineno" > 211< / span > < a class = "code hl_struct" href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html" > mem_info< / a > * toFree = NULL;< / div >
< div class = "line" > < span class = "lineno" > 212< / span > < a class = "code hl_struct" href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html" > mem_info< / a > * previous = NULL;< / div >
< div class = "line" > < span class = "lineno" > 213< / span > < / div >
< div class = "line" > < span class = "lineno" > 214< / span > < span class = "comment" > // Check if the head contains the pointer to free< / span > < / div >
< div class = "line" > < span class = "lineno" > 215< / span > < span class = "keywordflow" > if< / span > (tmp-> ptr == ptrToFree)< / div >
< div class = "line" > < span class = "lineno" > 216< / span > {< / div >
< div class = "line" > < span class = "lineno" > 217< / span > toFree = tmp;< / div >
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< div class = "line" > < span class = "lineno" > 218< / span > < a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > = tmp-> < a class = "code hl_variable" href = "../../d5/da1/structnode.html#a111a569ab2765add9b91c9f94cf9f063" > next< / a > ;< / div >
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< div class = "line" > < span class = "lineno" > 219< / span > < a class = "code hl_define" href = "../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768" > free< / a > (toFree-> < a class = "code hl_variable" href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html#a6b0971c1415de6e0123b8d0d0a626fde" > ptr< / a > );< / div >
< div class = "line" > < span class = "lineno" > 220< / span > < a class = "code hl_define" href = "../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768" > free< / a > (toFree);< / div >
< div class = "line" > < span class = "lineno" > 221< / span > < span class = "keywordflow" > if< / span > (< a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > )< / div >
< div class = "line" > < span class = "lineno" > 222< / span > {< / div >
< div class = "line" > < span class = "lineno" > 223< / span > < a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > -> < a class = "code hl_variable" href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html#a1cec46413acf776e3ee2b0b9241490c3" > previous< / a > = NULL;< / div >
< div class = "line" > < span class = "lineno" > 224< / span > }< / div >
< div class = "line" > < span class = "lineno" > 225< / span > < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < span class = "lineno" > 226< / span > }< / div >
< div class = "line" > < span class = "lineno" > 227< / span > < / div >
< div class = "line" > < span class = "lineno" > 228< / span > < span class = "comment" > // We can loop through the list without any problems, the head is not the pointer< / span > < / div >
< div class = "line" > < span class = "lineno" > 229< / span > < span class = "keywordflow" > while< / span > (tmp)< / div >
< div class = "line" > < span class = "lineno" > 230< / span > {< / div >
< div class = "line" > < span class = "lineno" > 231< / span > < span class = "keywordflow" > if< / span > (tmp-> ptr == ptrToFree) < span class = "comment" > // If we found the pointer that must be freed< / span > < / div >
< div class = "line" > < span class = "lineno" > 232< / span > {< / div >
< div class = "line" > < span class = "lineno" > 233< / span > toFree = tmp;< / div >
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< div class = "line" > < span class = "lineno" > 234< / span > tmp = tmp-> < a class = "code hl_variable" href = "../../d5/da1/structnode.html#a111a569ab2765add9b91c9f94cf9f063" > next< / a > ;< / div >
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< div class = "line" > < span class = "lineno" > 235< / span > previous = toFree-> < a class = "code hl_variable" href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html#a1cec46413acf776e3ee2b0b9241490c3" > previous< / a > ;< / div >
< div class = "line" > < span class = "lineno" > 236< / span > < / div >
< div class = "line" > < span class = "lineno" > 237< / span > < span class = "keywordflow" > if< / span > (previous)< / div >
< div class = "line" > < span class = "lineno" > 238< / span > {< / div >
< div class = "line" > < span class = "lineno" > 239< / span > previous-> < a class = "code hl_variable" href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html#aa296b903d0e2ac54acaa7c305bae8007" > next< / a > = tmp;< / div >
< div class = "line" > < span class = "lineno" > 240< / span > }< / div >
< div class = "line" > < span class = "lineno" > 241< / span > < span class = "keywordflow" > if< / span > (tmp)< / div >
< div class = "line" > < span class = "lineno" > 242< / span > {< / div >
< div class = "line" > < span class = "lineno" > 243< / span > tmp-> previous = previous;< / div >
< div class = "line" > < span class = "lineno" > 244< / span > }< / div >
< div class = "line" > < span class = "lineno" > 245< / span > < / div >
< div class = "line" > < span class = "lineno" > 246< / span > < a class = "code hl_define" href = "../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768" > free< / a > (toFree-> < a class = "code hl_variable" href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html#a6b0971c1415de6e0123b8d0d0a626fde" > ptr< / a > );< / div >
< div class = "line" > < span class = "lineno" > 247< / span > < span class = "keywordflow" > if< / span > (toFree == < a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > )< / div >
< div class = "line" > < span class = "lineno" > 248< / span > {< / div >
< div class = "line" > < span class = "lineno" > 249< / span > < a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > = NULL;< / div >
< div class = "line" > < span class = "lineno" > 250< / span > }< / div >
< div class = "line" > < span class = "lineno" > 251< / span > < a class = "code hl_define" href = "../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768" > free< / a > (toFree);< / div >
< div class = "line" > < span class = "lineno" > 252< / span > < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < span class = "lineno" > 253< / span > }< / div >
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< div class = "line" > < span class = "lineno" > 254< / span > tmp = tmp-> < a class = "code hl_variable" href = "../../d5/da1/structnode.html#a111a569ab2765add9b91c9f94cf9f063" > next< / a > ;< / div >
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< div class = "line" > < span class = "lineno" > 255< / span > }< / div >
< div class = "line" > < span class = "lineno" > 256< / span > }< / div >
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< div class = "ttc" id = "astruct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n_html" > < div class = "ttname" > < a href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html" > MEMORY_INFORMATION< / a > < / div > < div class = "ttdoc" > For the malloc, calloc and free functions.< / div > < div class = "ttdef" > < b > Definition:< / b > malloc_dbg.c:21< / div > < / div >
< div class = "ttc" id = "astruct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n_html_a1cec46413acf776e3ee2b0b9241490c3" > < div class = "ttname" > < a href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html#a1cec46413acf776e3ee2b0b9241490c3" > MEMORY_INFORMATION::previous< / a > < / div > < div class = "ttdeci" > struct MEMORY_INFORMATION * previous< / div > < div class = "ttdoc" > Previous element in the list.< / div > < div class = "ttdef" > < b > Definition:< / b > malloc_dbg.c:28< / div > < / div >
< div class = "ttc" id = "astruct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n_html_a6b0971c1415de6e0123b8d0d0a626fde" > < div class = "ttname" > < a href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html#a6b0971c1415de6e0123b8d0d0a626fde" > MEMORY_INFORMATION::ptr< / a > < / div > < div class = "ttdeci" > void * ptr< / div > < div class = "ttdoc" > Pointer returned by malloc / calloc.< / div > < div class = "ttdef" > < b > Definition:< / b > malloc_dbg.c:22< / div > < / div >
< div class = "ttc" id = "astruct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n_html_aa296b903d0e2ac54acaa7c305bae8007" > < div class = "ttname" > < a href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html#aa296b903d0e2ac54acaa7c305bae8007" > MEMORY_INFORMATION::next< / a > < / div > < div class = "ttdeci" > struct MEMORY_INFORMATION * next< / div > < div class = "ttdoc" > Next element in the list.< / div > < div class = "ttdef" > < b > Definition:< / b > malloc_dbg.c:27< / div > < / div >
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< div class = "ttc" id = "astructnode_html_a111a569ab2765add9b91c9f94cf9f063" > < div class = "ttname" > < a href = "../../d5/da1/structnode.html#a111a569ab2765add9b91c9f94cf9f063" > node::next< / a > < / div > < div class = "ttdeci" > struct node * next< / div > < div class = "ttdoc" > pointer to the node< / div > < div class = "ttdef" > < b > Definition:< / b > bfs.c:24< / div > < / div >
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< / div > <!-- fragment -->
< / div >
< / div >
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< a id = "a37914d05ba1fe8848aa1b48cda719422" name = "a37914d05ba1fe8848aa1b48cda719422" > < / a >
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< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a37914d05ba1fe8848aa1b48cda719422" > ◆   < / a > < / span > malloc_dbg()< / h2 >
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< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
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< td class = "memname" > void * malloc_dbg < / td >
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< td > (< / td >
< td class = "paramtype" > size_t  < / td >
< td class = "paramname" > < em > bytes< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > int  < / td >
< td class = "paramname" > < em > line< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > const char *  < / td >
< td class = "paramname" > < em > filename< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > const char *  < / td >
< td class = "paramname" > < em > functionName< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > malloc_dbg function is a wrapper around the malloc function. < / p >
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< p > This function calls malloc and allocates the number of bytes passed in the parameters. If the allocation succeeds then it add the pointer returned by malloc in the mem_info list. < / p > < dl class = "params" > < dt > Parameters< / dt > < dd >
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< table class = "params" >
< tr > < td class = "paramname" > bytes< / td > < td > Size of the allocation in bytes < / td > < / tr >
< tr > < td class = "paramname" > filename< / td > < td > Caller file < / td > < / tr >
< tr > < td class = "paramname" > functionName< / td > < td > Caller function < / td > < / tr >
< / table >
< / dd >
< / dl >
< dl class = "section return" > < dt > Returns< / dt > < dd > Pointer returned by malloc if it's valid, NULL otherwhise. < / dd > < / dl >
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< div class = "fragment" > < div class = "line" > < span class = "lineno" > 130< / span > {< / div >
< div class = "line" > < span class = "lineno" > 131< / span > < span class = "keywordtype" > void< / span > * ptrToReturn = < a class = "code hl_define" href = "../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee" > malloc< / a > (bytes);< / div >
< div class = "line" > < span class = "lineno" > 132< / span > < span class = "keywordtype" > int< / span > pos = 0;< / div >
< div class = "line" > < span class = "lineno" > 133< / span > < span class = "keywordflow" > if< / span > (!ptrToReturn)< / div >
< div class = "line" > < span class = "lineno" > 134< / span > {< / div >
< div class = "line" > < span class = "lineno" > 135< / span > < span class = "keywordflow" > return< / span > NULL;< / div >
< div class = "line" > < span class = "lineno" > 136< / span > }< / div >
< div class = "line" > < span class = "lineno" > 137< / span > < / div >
< div class = "line" > < span class = "lineno" > 138< / span > < span class = "comment" > // We must check atexitCalled value to know if we already called the function< / span > < / div >
< div class = "line" > < span class = "lineno" > 139< / span > < span class = "keywordflow" > if< / span > (!< a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#ad04afbbcb9f0f10bc7628ec4f0d7c950" > atexitCalled< / a > )< / div >
< div class = "line" > < span class = "lineno" > 140< / span > {< / div >
< div class = "line" > < span class = "lineno" > 141< / span > atexit(< a class = "code hl_function" href = "../../db/d84/malloc__dbg_8c.html#a2a47e4c38db8c00b80248e5535adf797" > printLeaks< / a > ); < span class = "comment" > // Used to call printLeaks when the program exit< / span > < / div >
< div class = "line" > < span class = "lineno" > 142< / span > < a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#ad04afbbcb9f0f10bc7628ec4f0d7c950" > atexitCalled< / a > = 1;< / div >
< div class = "line" > < span class = "lineno" > 143< / span > }< / div >
< div class = "line" > < span class = "lineno" > 144< / span > < / div >
< div class = "line" > < span class = "lineno" > 145< / span > pos = < a class = "code hl_function" href = "../../db/d84/malloc__dbg_8c.html#acd08c54b257fb81e57f16c94690072f2" > inList< / a > (filename, line);< / div >
< div class = "line" > < span class = "lineno" > 146< / span > < span class = "keywordflow" > if< / span > (pos == -1)< / div >
< div class = "line" > < span class = "lineno" > 147< / span > {< / div >
< div class = "line" > < span class = "lineno" > 148< / span > < span class = "comment" > // Add a new element in the mem_info list< / span > < / div >
< div class = "line" > < span class = "lineno" > 149< / span > < a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > = < a class = "code hl_function" href = "../../db/d84/malloc__dbg_8c.html#a062aa89cafd39a97971a2eb22653ff2a" > addMemInfo< / a > (< a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > , ptrToReturn, bytes, line, filename, functionName);< / div >
< div class = "line" > < span class = "lineno" > 150< / span > < span class = "keywordflow" > if< / span > (!< a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > )< / div >
< div class = "line" > < span class = "lineno" > 151< / span > {< / div >
< div class = "line" > < span class = "lineno" > 152< / span > < a class = "code hl_define" href = "../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768" > free< / a > (ptrToReturn);< / div >
< div class = "line" > < span class = "lineno" > 153< / span > < span class = "keywordflow" > return< / span > NULL;< / div >
< div class = "line" > < span class = "lineno" > 154< / span > }< / div >
< div class = "line" > < span class = "lineno" > 155< / span > }< / div >
< div class = "line" > < span class = "lineno" > 156< / span > < span class = "keywordflow" > else< / span > < / div >
< div class = "line" > < span class = "lineno" > 157< / span > {< / div >
< div class = "line" > < span class = "lineno" > 158< / span > < a class = "code hl_function" href = "../../db/d84/malloc__dbg_8c.html#a8ac3a93239838ac88c18df64c58b9275" > editInfo< / a > (pos, bytes);< / div >
< div class = "line" > < span class = "lineno" > 159< / span > }< / div >
< div class = "line" > < span class = "lineno" > 160< / span > < span class = "keywordflow" > return< / span > ptrToReturn;< / div >
< div class = "line" > < span class = "lineno" > 161< / span > }< / div >
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< div class = "ttc" id = "amalloc__dbg_8c_html_a8ac3a93239838ac88c18df64c58b9275" > < div class = "ttname" > < a href = "../../db/d84/malloc__dbg_8c.html#a8ac3a93239838ac88c18df64c58b9275" > editInfo< / a > < / div > < div class = "ttdeci" > void editInfo(int elemPos, size_t bytes)< / div > < div class = "ttdoc" > editInfo function is used to edit an element in the memoryInfo list.< / div > < div class = "ttdef" > < b > Definition:< / b > malloc_dbg.c:107< / div > < / div >
< div class = "ttc" id = "amalloc__dbg_8c_html_acd08c54b257fb81e57f16c94690072f2" > < div class = "ttname" > < a href = "../../db/d84/malloc__dbg_8c.html#acd08c54b257fb81e57f16c94690072f2" > inList< / a > < / div > < div class = "ttdeci" > int inList(const char *filename, int line)< / div > < div class = "ttdoc" > inList function is used to know if an element is already in the memoryInfo list.< / div > < div class = "ttdef" > < b > Definition:< / b > malloc_dbg.c:79< / div > < / div >
< div class = "ttc" id = "amalloc__dbg_8h_html_a725f50ecaf1959d96de79b36b4788fee" > < div class = "ttname" > < a href = "../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee" > malloc< / a > < / div > < div class = "ttdeci" > #define malloc(bytes)< / div > < div class = "ttdoc" > This macro replace the standard malloc function with malloc_dbg.< / div > < div class = "ttdef" > < b > Definition:< / b > malloc_dbg.h:18< / div > < / div >
< / div > <!-- fragment --> < div class = "dynheader" >
Here is the call graph for this function:< / div >
< div class = "dyncontent" >
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< div class = "center" > < iframe scrolling = "no" frameborder = "0" src = "../../d2/ddd/malloc__dbg_8h_a37914d05ba1fe8848aa1b48cda719422_cgraph.svg" width = "242" height = "184" > < p > < b > This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.< / b > < / p > < / iframe >
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< / div >
< / div >
< / div >
< / div >
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< a id = "abfd0a4452069af4cfefe4a5d037e92ef" name = "abfd0a4452069af4cfefe4a5d037e92ef" > < / a >
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< h2 class = "memtitle" > < span class = "permalink" > < a href = "#abfd0a4452069af4cfefe4a5d037e92ef" > ◆   < / a > < / span > printLeaks()< / h2 >
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< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > void printLeaks < / td >
< td > (< / td >
< td class = "paramtype" > void  < / td >
< td class = "paramname" > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > printLeaks function is used to print all the memory leaks. < / p >
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< p > This function is called when the program exits. It loop through the mem_info list and if it's not empty, it prints the memory leaks. < / p > < dl class = "section return" > < dt > Returns< / dt > < dd > Nothing. < / dd > < / dl >
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< div class = "fragment" > < div class = "line" > < span class = "lineno" > 265< / span > {< / div >
< div class = "line" > < span class = "lineno" > 266< / span > < a class = "code hl_struct" href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html" > mem_info< / a > * tmp = < a class = "code hl_variable" href = "../../db/d84/malloc__dbg_8c.html#afebd751704cd878d2e4b88499519c6e3" > memoryInformation< / a > ;< / div >
< div class = "line" > < span class = "lineno" > 267< / span > < a class = "code hl_struct" href = "../../d4/d73/struct_m_e_m_o_r_y___i_n_f_o_r_m_a_t_i_o_n.html" > mem_info< / a > * previous = NULL;< / div >
< div class = "line" > < span class = "lineno" > 268< / span > < span class = "keywordtype" > size_t< / span > sum = 0;< / div >
< div class = "line" > < span class = "lineno" > 269< / span > < span class = "keywordtype" > int< / span > nbBlocks = 0;< / div >
< div class = "line" > < span class = "lineno" > 270< / span > < / div >
< div class = "line" > < span class = "lineno" > 271< / span > < span class = "keywordflow" > if< / span > (tmp)< / div >
< div class = "line" > < span class = "lineno" > 272< / span > {< / div >
< div class = "line" > < span class = "lineno" > 273< / span > printf(< span class = "stringliteral" > " Memory Leaks detected.\n" < / span > );< / div >
< div class = "line" > < span class = "lineno" > 274< / span > }< / div >
< div class = "line" > < span class = "lineno" > 275< / span > < / div >
< div class = "line" > < span class = "lineno" > 276< / span > < span class = "keywordflow" > while< / span > (tmp)< / div >
< div class = "line" > < span class = "lineno" > 277< / span > {< / div >
< div class = "line" > < span class = "lineno" > 278< / span > previous = tmp;< / div >
< div class = "line" > < span class = "lineno" > 279< / span > printf(< span class = "stringliteral" > " \n%ld bytes lost\n" < / span > , tmp-> bytes);< / div >
< div class = "line" > < span class = "lineno" > 280< / span > printf(< span class = "stringliteral" > " address : 0x%p in %s\t%s:%d\n" < / span > , tmp-> ptr, tmp-> functionName, tmp-> fileName, tmp-> line);< / div >
< div class = "line" > < span class = "lineno" > 281< / span > printf(< span class = "stringliteral" > " \n====================================\n" < / span > );< / div >
< div class = "line" > < span class = "lineno" > 282< / span > sum += tmp-> bytes;< / div >
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< div class = "line" > < span class = "lineno" > 283< / span > tmp = tmp-> < a class = "code hl_variable" href = "../../d5/da1/structnode.html#a111a569ab2765add9b91c9f94cf9f063" > next< / a > ;< / div >
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< div class = "line" > < span class = "lineno" > 284< / span > < a class = "code hl_define" href = "../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768" > free< / a > (previous);< / div >
< div class = "line" > < span class = "lineno" > 285< / span > nbBlocks++;< / div >
< div class = "line" > < span class = "lineno" > 286< / span > }< / div >
< div class = "line" > < span class = "lineno" > 287< / span > < / div >
< div class = "line" > < span class = "lineno" > 288< / span > printf(< span class = "stringliteral" > " SUMMARY :\n%ld bytes lost in %d blocks\n" < / span > , sum, nbBlocks);< / div >
< div class = "line" > < span class = "lineno" > 289< / span > }< / div >
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< / div > <!-- fragment -->
< / div >
< / div >
< / div > <!-- contents -->
< / div > <!-- doc - content -->
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< div id = "nav-path" class = "navpath" > <!-- id is needed for treeview function! -->
< ul >
< li class = "navelem" > < a class = "el" href = "../../dir_abf1a26ece768c4076e73592705ae077.html" > developer_tools< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../d2/ddd/malloc__dbg_8h.html" > malloc_dbg.h< / a > < / li >
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