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< div class = "headertitle" > < div class = "title" > factorial_large_number.c File Reference< / div > < / div >
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< p > Compute factorial of arbitrarily large numbers by storing individual digits in a byte.
< a href = "#details" > More...< / a > < / p >
< div class = "textblock" > < code > #include < stdio.h> < / code > < br / >
< code > #include < stdlib.h> < / code > < br / >
< code > #include < time.h> < / code > < br / >
< / div > < div class = "textblock" > < div class = "dynheader" >
Include dependency graph for factorial_large_number.c:< / div >
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< div class = "center" > < iframe scrolling = "no" frameborder = "0" src = "../../df/db0/factorial__large__number_8c__incl.svg" width = "243" height = "127" > < p > < b > This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.< / b > < / p > < / iframe >
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Data Structures< / h2 > < / td > < / tr >
< tr class = "memitem:" > < td class = "memItemLeft" align = "right" valign = "top" > struct   < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d3/d5a/struct__large__num.html" > _large_num< / a > < / td > < / tr >
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< tr class = "memdesc:" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > dynamically large number < a href = "../../d3/d5a/struct__large__num.html#details" > More...< / a > < br / > < / td > < / tr >
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< tr class = "separator:" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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Typedefs< / h2 > < / td > < / tr >
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typedef struct < a class = "el" href = "../../d3/d5a/struct__large__num.html" > _large_num< / a >   < / td > < td class = "memItemRight" valign = "bottom" > < b > large_num< / b > < / td > < / tr >
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< tr class = "memdesc:ab54882961780c41a4929a6d390f6522d" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > dynamically large number < br / > < / td > < / tr >
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Functions< / h2 > < / td > < / tr >
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< tr class = "memitem:ace5f6aa21955d4e4bdc89228c2f91234" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d" > large_num< / a > *  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#ace5f6aa21955d4e4bdc89228c2f91234" > new_number< / a > (void)< / td > < / tr >
< tr class = "memdesc:ace5f6aa21955d4e4bdc89228c2f91234" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > create a new large number < a href = "../../d6/d3d/factorial__large__number_8c.html#ace5f6aa21955d4e4bdc89228c2f91234" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:ace5f6aa21955d4e4bdc89228c2f91234" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:ab5c854e0df76165c31899e69eceeeaae" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#ab5c854e0df76165c31899e69eceeeaae" > delete_number< / a > (< a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d" > large_num< / a > *num)< / td > < / tr >
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< tr class = "memdesc:ab5c854e0df76165c31899e69eceeeaae" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > delete all memory allocated for large number < a href = "../../d6/d3d/factorial__large__number_8c.html#ab5c854e0df76165c31899e69eceeeaae" > More...< / a > < br / > < / td > < / tr >
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< tr class = "separator:ab5c854e0df76165c31899e69eceeeaae" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:af2869d36c22a2b8f93d3166a84e124b3" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#af2869d36c22a2b8f93d3166a84e124b3" > add_digit< / a > (< a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d" > large_num< / a > *num, unsigned int value)< / td > < / tr >
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< tr class = "memdesc:af2869d36c22a2b8f93d3166a84e124b3" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > add a digit to the large number < a href = "../../d6/d3d/factorial__large__number_8c.html#af2869d36c22a2b8f93d3166a84e124b3" > More...< / a > < br / > < / td > < / tr >
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< tr class = "separator:af2869d36c22a2b8f93d3166a84e124b3" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:ad398ddbd594ca69a5e6dfc894925341e" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#ad398ddbd594ca69a5e6dfc894925341e" > multiply< / a > (< a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d" > large_num< / a > *num, unsigned long n)< / td > < / tr >
< tr class = "memdesc:ad398ddbd594ca69a5e6dfc894925341e" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > multiply large number with another integer and store the result in the same large number < a href = "../../d6/d3d/factorial__large__number_8c.html#ad398ddbd594ca69a5e6dfc894925341e" > More...< / a > < br / > < / td > < / tr >
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< tr class = "separator:ad398ddbd594ca69a5e6dfc894925341e" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:a0ddf1224851353fc92bfbff6f499fa97" > < td class = "memItemLeft" align = "right" valign = "top" > int  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#a0ddf1224851353fc92bfbff6f499fa97" > main< / a > (int argc, char *argv[])< / td > < / tr >
< tr class = "memdesc:a0ddf1224851353fc92bfbff6f499fa97" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > main function < a href = "../../d6/d3d/factorial__large__number_8c.html#a0ddf1224851353fc92bfbff6f499fa97" > More...< / a > < br / > < / td > < / tr >
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< tr class = "separator:a0ddf1224851353fc92bfbff6f499fa97" > < 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 > Compute factorial of arbitrarily large numbers by storing individual digits in a byte. < / p >
< dl class = "section author" > < dt > Author< / dt > < dd > < a href = "https://github.com/kvedala" target = "_blank" > Krishna Vedala< / a > < / dd > < / dl >
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< / div > < h2 class = "groupheader" > Function Documentation< / h2 >
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< a id = "af2869d36c22a2b8f93d3166a84e124b3" name = "af2869d36c22a2b8f93d3166a84e124b3" > < / a >
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< h2 class = "memtitle" > < span class = "permalink" > < a href = "#af2869d36c22a2b8f93d3166a84e124b3" > ◆ < / a > < / span > add_digit()< / h2 >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > void add_digit < / td >
< td > (< / td >
< td class = "paramtype" > < a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d" > large_num< / a > *  < / td >
< td class = "paramname" > < em > num< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > unsigned int  < / td >
< td class = "paramname" > < em > value< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > add a digit to the large number < / p >
< dl class = "params" > < dt > Parameters< / dt > < dd >
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< table class = "params" >
< tr > < td class = "paramdir" > [in,out]< / td > < td class = "paramname" > num< / td > < td > < / td > < / tr >
< tr > < td class = "paramdir" > [in]< / td > < td class = "paramname" > value< / td > < td > value of the digit to insert < / td > < / tr >
< / table >
< / dd >
< / dl >
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< div class = "fragment" > < div class = "line" > < a id = "l00049" name = "l00049" > < / a > < span class = "lineno" > 49< / span > {< / div >
< div class = "line" > < a id = "l00050" name = "l00050" > < / a > < span class = "lineno" > 50< / span > < span class = "keywordflow" > if< / span > (value > 9)< / div >
< div class = "line" > < a id = "l00051" name = "l00051" > < / a > < span class = "lineno" > 51< / span > {< / div >
< div class = "line" > < a id = "l00052" name = "l00052" > < / a > < span class = "lineno" > 52< / span > fprintf(stderr, < span class = "stringliteral" > " digit > 9!!\n" < / span > );< / div >
< div class = "line" > < a id = "l00053" name = "l00053" > < / a > < span class = "lineno" > 53< / span > < a class = "code hl_function" href = "../../d6/d3d/factorial__large__number_8c.html#ab5c854e0df76165c31899e69eceeeaae" > delete_number< / a > (num);< / div >
< div class = "line" > < a id = "l00054" name = "l00054" > < / a > < span class = "lineno" > 54< / span > exit(EXIT_FAILURE);< / div >
< div class = "line" > < a id = "l00055" name = "l00055" > < / a > < span class = "lineno" > 55< / span > }< / div >
< div class = "line" > < a id = "l00056" name = "l00056" > < / a > < span class = "lineno" > 56< / span > < / div >
< div class = "line" > < a id = "l00057" name = "l00057" > < / a > < span class = "lineno" > 57< / span > num-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0" > num_digits< / a > ++;< / div >
< div class = "line" > < a id = "l00058" name = "l00058" > < / a > < span class = "lineno" > 58< / span > num-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > = (< span class = "keywordtype" > char< / span > *)realloc(num-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > , num-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0" > num_digits< / a > * < span class = "keyword" > sizeof< / span > (< span class = "keywordtype" > char< / span > ));< / div >
< div class = "line" > < a id = "l00059" name = "l00059" > < / a > < span class = "lineno" > 59< / span > num-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > [num-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0" > num_digits< / a > - 1] = value;< / div >
< div class = "line" > < a id = "l00060" name = "l00060" > < / a > < span class = "lineno" > 60< / span > }< / div >
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< div class = "ttc" id = "afactorial__large__number_8c_html_ab5c854e0df76165c31899e69eceeeaae" > < div class = "ttname" > < a href = "../../d6/d3d/factorial__large__number_8c.html#ab5c854e0df76165c31899e69eceeeaae" > delete_number< / a > < / div > < div class = "ttdeci" > void delete_number(large_num *num)< / div > < div class = "ttdoc" > delete all memory allocated for large number< / div > < div class = "ttdef" > < b > Definition:< / b > factorial_large_number.c:37< / div > < / div >
< div class = "ttc" id = "astruct__large__num_html_a3fd11c0b413bbabfb8737d4ae73e5aa0" > < div class = "ttname" > < a href = "../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0" > _large_num::num_digits< / a > < / div > < div class = "ttdeci" > unsigned int num_digits< / div > < div class = "ttdoc" > number of digits in the number< / div > < div class = "ttdef" > < b > Definition:< / b > factorial_large_number.c:17< / div > < / div >
< div class = "ttc" id = "astruct__large__num_html_afaf353a072cf050ac86ac6e39868bcc9" > < div class = "ttname" > < a href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > _large_num::digits< / a > < / div > < div class = "ttdeci" > char * digits< / div > < div class = "ttdoc" > array to store individual digits< / div > < div class = "ttdef" > < b > Definition:< / b > factorial_large_number.c:16< / div > < / div >
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< / 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 = "../../d6/d3d/factorial__large__number_8c_af2869d36c22a2b8f93d3166a84e124b3_cgraph.svg" width = "246" height = "38" > < 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 = "ab5c854e0df76165c31899e69eceeeaae" name = "ab5c854e0df76165c31899e69eceeeaae" > < / a >
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< h2 class = "memtitle" > < span class = "permalink" > < a href = "#ab5c854e0df76165c31899e69eceeeaae" > ◆ < / a > < / span > delete_number()< / h2 >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
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< td class = "memname" > void delete_number < / td >
< td > (< / td >
< td class = "paramtype" > < a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d" > large_num< / a > *  < / td >
< td class = "paramname" > < em > num< / em > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > delete all memory allocated for large number < / p >
< dl class = "params" > < dt > Parameters< / dt > < dd >
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< table class = "params" >
< tr > < td class = "paramdir" > [in]< / td > < td class = "paramname" > num< / td > < td > pointer to large_num to delete < / td > < / tr >
< / table >
< / dd >
< / dl >
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< div class = "fragment" > < div class = "line" > < a id = "l00038" name = "l00038" > < / a > < span class = "lineno" > 38< / span > {< / div >
< div class = "line" > < a id = "l00039" name = "l00039" > < / a > < span class = "lineno" > 39< / span > < a class = "code hl_define" href = "../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768" > free< / a > (num-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > );< / div >
< div class = "line" > < a id = "l00040" name = "l00040" > < / a > < span class = "lineno" > 40< / span > < a class = "code hl_define" href = "../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768" > free< / a > (num);< / div >
< div class = "line" > < a id = "l00041" name = "l00041" > < / a > < span class = "lineno" > 41< / span > }< / div >
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< 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 >
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< / div > <!-- fragment -->
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< / div >
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< a id = "a0ddf1224851353fc92bfbff6f499fa97" name = "a0ddf1224851353fc92bfbff6f499fa97" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a0ddf1224851353fc92bfbff6f499fa97" > ◆ < / a > < / span > main()< / h2 >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > int main < / td >
< td > (< / td >
< td class = "paramtype" > int  < / td >
< td class = "paramname" > < em > argc< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > char *  < / td >
< td class = "paramname" > < em > argv< / em > []  < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > main function < / p >
< div class = "fragment" > < div class = "line" > < a id = "l00095" name = "l00095" > < / a > < span class = "lineno" > 95< / span > {< / div >
< div class = "line" > < a id = "l00096" name = "l00096" > < / a > < span class = "lineno" > 96< / span > < span class = "keywordtype" > int< / span > number, i;< / div >
< div class = "line" > < a id = "l00097" name = "l00097" > < / a > < span class = "lineno" > 97< / span > < / div >
< div class = "line" > < a id = "l00098" name = "l00098" > < / a > < span class = "lineno" > 98< / span > < span class = "comment" > // Asks for the number/position of term in Fibonnacci sequence< / span > < / div >
< div class = "line" > < a id = "l00099" name = "l00099" > < / a > < span class = "lineno" > 99< / span > < span class = "keywordflow" > if< / span > (argc == 2)< / div >
< div class = "line" > < a id = "l00100" name = "l00100" > < / a > < span class = "lineno" > 100< / span > number = atoi(argv[1]);< / div >
< div class = "line" > < a id = "l00101" name = "l00101" > < / a > < span class = "lineno" > 101< / span > < span class = "keywordflow" > else< / span > < / div >
< div class = "line" > < a id = "l00102" name = "l00102" > < / a > < span class = "lineno" > 102< / span > {< / div >
< div class = "line" > < a id = "l00103" name = "l00103" > < / a > < span class = "lineno" > 103< / span > printf(< span class = "stringliteral" > " Enter the value of n(n starts from 0 ): " < / span > );< / div >
< div class = "line" > < a id = "l00104" name = "l00104" > < / a > < span class = "lineno" > 104< / span > scanf(< span class = "stringliteral" > " %d" < / span > , & number);< / div >
< div class = "line" > < a id = "l00105" name = "l00105" > < / a > < span class = "lineno" > 105< / span > }< / div >
< div class = "line" > < a id = "l00106" name = "l00106" > < / a > < span class = "lineno" > 106< / span > < / div >
< div class = "line" > < a id = "l00107" name = "l00107" > < / a > < span class = "lineno" > 107< / span > < a class = "code hl_struct" href = "../../d3/d5a/struct__large__num.html" > large_num< / a > *result = < a class = "code hl_function" href = "../../d6/d3d/factorial__large__number_8c.html#ace5f6aa21955d4e4bdc89228c2f91234" > new_number< / a > ();< / div >
< div class = "line" > < a id = "l00108" name = "l00108" > < / a > < span class = "lineno" > 108< / span > < / div >
< div class = "line" > < a id = "l00109" name = "l00109" > < / a > < span class = "lineno" > 109< / span > clock_t start_time = clock();< / div >
< div class = "line" > < a id = "l00110" name = "l00110" > < / a > < span class = "lineno" > 110< / span > < span class = "keywordflow" > for< / span > (i = 2; i < = number; i++) < span class = "comment" > /* Multiply every number from 2 thru N */< / span > < / div >
< div class = "line" > < a id = "l00111" name = "l00111" > < / a > < span class = "lineno" > 111< / span > < a class = "code hl_function" href = "../../d6/d3d/factorial__large__number_8c.html#ad398ddbd594ca69a5e6dfc894925341e" > multiply< / a > (result, i);< / div >
< div class = "line" > < a id = "l00112" name = "l00112" > < / a > < span class = "lineno" > 112< / span > < span class = "keywordtype" > double< / span > time_taken = (clock() - start_time) * (< span class = "keywordtype" > double< / span > )1e3 / CLOCKS_PER_SEC;< / div >
< div class = "line" > < a id = "l00113" name = "l00113" > < / a > < span class = "lineno" > 113< / span > < span class = "comment" > // time_taken = (clock() - start_time) / (double) CLOCKS_PER_SEC;< / span > < / div >
< div class = "line" > < a id = "l00114" name = "l00114" > < / a > < span class = "lineno" > 114< / span > < / div >
< div class = "line" > < a id = "l00115" name = "l00115" > < / a > < span class = "lineno" > 115< / span > printf(< span class = "stringliteral" > " %d! = " < / span > , number);< / div >
< div class = "line" > < a id = "l00116" name = "l00116" > < / a > < span class = "lineno" > 116< / span > < span class = "keywordflow" > for< / span > (i = result-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0" > num_digits< / a > ; i > 0; i--)< / div >
< div class = "line" > < a id = "l00117" name = "l00117" > < / a > < span class = "lineno" > 117< / span > putchar(result-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > [i - 1] + < span class = "charliteral" > ' 0' < / span > );< / div >
< div class = "line" > < a id = "l00118" name = "l00118" > < / a > < span class = "lineno" > 118< / span > printf(< span class = "stringliteral" > " \nTime taken: %.4g ms\n" < / span > , time_taken);< / div >
< div class = "line" > < a id = "l00119" name = "l00119" > < / a > < span class = "lineno" > 119< / span > < / div >
< div class = "line" > < a id = "l00120" name = "l00120" > < / a > < span class = "lineno" > 120< / span > < a class = "code hl_function" href = "../../d6/d3d/factorial__large__number_8c.html#ab5c854e0df76165c31899e69eceeeaae" > delete_number< / a > (result);< / div >
< div class = "line" > < a id = "l00121" name = "l00121" > < / a > < span class = "lineno" > 121< / span > < span class = "keywordflow" > return< / span > 0;< / div >
< div class = "line" > < a id = "l00122" name = "l00122" > < / a > < span class = "lineno" > 122< / span > }< / div >
< div class = "ttc" id = "afactorial__large__number_8c_html_ace5f6aa21955d4e4bdc89228c2f91234" > < div class = "ttname" > < a href = "../../d6/d3d/factorial__large__number_8c.html#ace5f6aa21955d4e4bdc89228c2f91234" > new_number< / a > < / div > < div class = "ttdeci" > large_num * new_number(void)< / div > < div class = "ttdoc" > create a new large number< / div > < div class = "ttdef" > < b > Definition:< / b > factorial_large_number.c:24< / div > < / div >
< div class = "ttc" id = "afactorial__large__number_8c_html_ad398ddbd594ca69a5e6dfc894925341e" > < div class = "ttname" > < a href = "../../d6/d3d/factorial__large__number_8c.html#ad398ddbd594ca69a5e6dfc894925341e" > multiply< / a > < / div > < div class = "ttdeci" > void multiply(large_num *num, unsigned long n)< / div > < div class = "ttdoc" > multiply large number with another integer and store the result in the same large number< / div > < div class = "ttdef" > < b > Definition:< / b > factorial_large_number.c:66< / div > < / div >
< div class = "ttc" id = "astruct__large__num_html" > < div class = "ttname" > < a href = "../../d3/d5a/struct__large__num.html" > _large_num< / a > < / div > < div class = "ttdoc" > dynamically large number< / div > < div class = "ttdef" > < b > Definition:< / b > factorial_large_number.c:15< / div > < / div >
< / div > <!-- fragment --> < div class = "dynheader" >
Here is the call graph for this function:< / div >
< div class = "dyncontent" >
< div class = "center" > < iframe scrolling = "no" frameborder = "0" src = "../../d6/d3d/factorial__large__number_8c_a0ddf1224851353fc92bfbff6f499fa97_cgraph.svg" width = "491" height = "114" > < p > < b > This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.< / b > < / p > < / iframe >
< / div >
< / div >
< / div >
< / div >
< a id = "ad398ddbd594ca69a5e6dfc894925341e" name = "ad398ddbd594ca69a5e6dfc894925341e" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#ad398ddbd594ca69a5e6dfc894925341e" > ◆ < / a > < / span > multiply()< / h2 >
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< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
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< td class = "memname" > void multiply < / td >
< td > (< / td >
< td class = "paramtype" > < a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d" > large_num< / a > *  < / td >
< td class = "paramname" > < em > num< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > unsigned long  < / td >
< td class = "paramname" > < em > n< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > multiply large number with another integer and store the result in the same large number < / p >
< div class = "fragment" > < div class = "line" > < a id = "l00067" name = "l00067" > < / a > < span class = "lineno" > 67< / span > {< / div >
< div class = "line" > < a id = "l00068" name = "l00068" > < / a > < span class = "lineno" > 68< / span > < span class = "keywordtype" > int< / span > i;< / div >
< div class = "line" > < a id = "l00069" name = "l00069" > < / a > < span class = "lineno" > 69< / span > < span class = "keywordtype" > unsigned< / span > < span class = "keywordtype" > long< / span > carry = 0, temp;< / div >
< div class = "line" > < a id = "l00070" name = "l00070" > < / a > < span class = "lineno" > 70< / span > < span class = "keywordflow" > for< / span > (i = 0; i < num-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0" > num_digits< / a > ; i++)< / div >
< div class = "line" > < a id = "l00071" name = "l00071" > < / a > < span class = "lineno" > 71< / span > {< / div >
< div class = "line" > < a id = "l00072" name = "l00072" > < / a > < span class = "lineno" > 72< / span > temp = num-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > [i] * n;< / div >
< div class = "line" > < a id = "l00073" name = "l00073" > < / a > < span class = "lineno" > 73< / span > temp += carry;< / div >
< div class = "line" > < a id = "l00074" name = "l00074" > < / a > < span class = "lineno" > 74< / span > < span class = "keywordflow" > if< / span > (temp < 10)< / div >
< div class = "line" > < a id = "l00075" name = "l00075" > < / a > < span class = "lineno" > 75< / span > carry = 0;< / div >
< div class = "line" > < a id = "l00076" name = "l00076" > < / a > < span class = "lineno" > 76< / span > < span class = "keywordflow" > else< / span > < / div >
< div class = "line" > < a id = "l00077" name = "l00077" > < / a > < span class = "lineno" > 77< / span > {< / div >
< div class = "line" > < a id = "l00078" name = "l00078" > < / a > < span class = "lineno" > 78< / span > carry = temp / 10;< / div >
< div class = "line" > < a id = "l00079" name = "l00079" > < / a > < span class = "lineno" > 79< / span > temp = temp % 10;< / div >
< div class = "line" > < a id = "l00080" name = "l00080" > < / a > < span class = "lineno" > 80< / span > }< / div >
< div class = "line" > < a id = "l00081" name = "l00081" > < / a > < span class = "lineno" > 81< / span > num-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > [i] = temp;< / div >
< div class = "line" > < a id = "l00082" name = "l00082" > < / a > < span class = "lineno" > 82< / span > }< / div >
< div class = "line" > < a id = "l00083" name = "l00083" > < / a > < span class = "lineno" > 83< / span > < / div >
< div class = "line" > < a id = "l00084" name = "l00084" > < / a > < span class = "lineno" > 84< / span > < span class = "keywordflow" > while< / span > (carry != 0)< / div >
< div class = "line" > < a id = "l00085" name = "l00085" > < / a > < span class = "lineno" > 85< / span > {< / div >
< div class = "line" > < a id = "l00086" name = "l00086" > < / a > < span class = "lineno" > 86< / span > < a class = "code hl_function" href = "../../d6/d3d/factorial__large__number_8c.html#af2869d36c22a2b8f93d3166a84e124b3" > add_digit< / a > (num, carry % 10);< / div >
< div class = "line" > < a id = "l00087" name = "l00087" > < / a > < span class = "lineno" > 87< / span > carry /= 10;< / div >
< div class = "line" > < a id = "l00088" name = "l00088" > < / a > < span class = "lineno" > 88< / span > }< / div >
< div class = "line" > < a id = "l00089" name = "l00089" > < / a > < span class = "lineno" > 89< / span > }< / div >
< div class = "ttc" id = "afactorial__large__number_8c_html_af2869d36c22a2b8f93d3166a84e124b3" > < div class = "ttname" > < a href = "../../d6/d3d/factorial__large__number_8c.html#af2869d36c22a2b8f93d3166a84e124b3" > add_digit< / a > < / div > < div class = "ttdeci" > void add_digit(large_num *num, unsigned int value)< / div > < div class = "ttdoc" > add a digit to the large number< / div > < div class = "ttdef" > < b > Definition:< / b > factorial_large_number.c:48< / div > < / div >
< / div > <!-- fragment --> < div class = "dynheader" >
Here is the call graph for this function:< / div >
< div class = "dyncontent" >
< div class = "center" > < iframe scrolling = "no" frameborder = "0" src = "../../d6/d3d/factorial__large__number_8c_ad398ddbd594ca69a5e6dfc894925341e_cgraph.svg" width = "360" height = "38" > < p > < b > This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.< / b > < / p > < / iframe >
< / div >
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< a id = "ace5f6aa21955d4e4bdc89228c2f91234" name = "ace5f6aa21955d4e4bdc89228c2f91234" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#ace5f6aa21955d4e4bdc89228c2f91234" > ◆ < / a > < / span > new_number()< / h2 >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > < a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d" > large_num< / a > * new_number < / td >
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< td > (< / td >
< td class = "paramtype" > void  < / td >
< td class = "paramname" > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
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< p > create a new large number < / p >
< dl class = "section return" > < dt > Returns< / dt > < dd > pointer to a large number < / dd > < / dl >
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< div class = "fragment" > < div class = "line" > < a id = "l00025" name = "l00025" > < / a > < span class = "lineno" > 25< / span > {< / div >
< div class = "line" > < a id = "l00026" name = "l00026" > < / a > < span class = "lineno" > 26< / span > < a class = "code hl_struct" href = "../../d3/d5a/struct__large__num.html" > large_num< / a > *new_num = (< a class = "code hl_struct" href = "../../d3/d5a/struct__large__num.html" > large_num< / a > *)< a class = "code hl_define" href = "../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee" > malloc< / a > (< span class = "keyword" > sizeof< / span > (< a class = "code hl_struct" href = "../../d3/d5a/struct__large__num.html" > large_num< / a > ));< / div >
< div class = "line" > < a id = "l00027" name = "l00027" > < / a > < span class = "lineno" > 27< / span > new_num-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0" > num_digits< / a > = 1;< / div >
< div class = "line" > < a id = "l00028" name = "l00028" > < / a > < span class = "lineno" > 28< / span > new_num-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > = (< span class = "keywordtype" > char< / span > *)< a class = "code hl_define" href = "../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee" > malloc< / a > (1 * < span class = "keyword" > sizeof< / span > (< span class = "keywordtype" > char< / span > ));< / div >
< div class = "line" > < a id = "l00029" name = "l00029" > < / a > < span class = "lineno" > 29< / span > new_num-> < a class = "code hl_variable" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > [0] = 1;< / div >
< div class = "line" > < a id = "l00030" name = "l00030" > < / a > < span class = "lineno" > 30< / span > < span class = "keywordflow" > return< / span > new_num;< / div >
< div class = "line" > < a id = "l00031" name = "l00031" > < / a > < span class = "lineno" > 31< / span > }< / div >
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2021-10-26 03:34:27 +08:00
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