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< 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 >
< div class = "dyncontent" >
< 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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< tr class = "memitem:ab54882961780c41a4929a6d390f6522d" > < td class = "memItemLeft" align = "right" valign = "top" > < a id = "ab54882961780c41a4929a6d390f6522d" > < / a >
typedef struct < a class = "el" href = "../../d3/d5a/struct__large__num.html" > _large_num< / a >   < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d" > large_num< / a > < / td > < / tr >
< tr class = "memdesc:ab54882961780c41a4929a6d390f6522d" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > dynamically large number < br / > < / td > < / tr >
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< tr class = "separator:ab54882961780c41a4929a6d390f6522d" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< / table > < table class = "memberdecls" >
< tr class = "heading" > < td colspan = "2" > < h2 class = "groupheader" > < a name = "func-members" > < / a >
Functions< / h2 > < / td > < / tr >
< tr class = "memitem:ad8101f58545bd891ae8b6e11caadd7eb" > < 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#ad8101f58545bd891ae8b6e11caadd7eb" > new_number< / a > (void)< / td > < / tr >
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< tr class = "memdesc:ad8101f58545bd891ae8b6e11caadd7eb" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > create a new large number < a href = "../../d6/d3d/factorial__large__number_8c.html#ad8101f58545bd891ae8b6e11caadd7eb" > More...< / a > < br / > < / td > < / tr >
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< tr class = "separator:ad8101f58545bd891ae8b6e11caadd7eb" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< 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" > < a id = "ad398ddbd594ca69a5e6dfc894925341e" > < / a >
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 < br / > < / td > < / tr >
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< tr class = "separator:ad398ddbd594ca69a5e6dfc894925341e" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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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 < 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 >
< 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" > Krishna Vedala< / a > < / dd > < / dl >
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< / div > < h2 class = "groupheader" > Function Documentation< / h2 >
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< a id = "af2869d36c22a2b8f93d3166a84e124b3" > < / a >
< 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 >
< div class = "fragment" > < div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   {< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < span class = "keywordflow" > if< / span > (value > 9)< / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   {< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   fprintf(stderr, < span class = "stringliteral" > " digit > 9!!\n" < / span > );< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < a class = "code" href = "../../d6/d3d/factorial__large__number_8c.html#ab5c854e0df76165c31899e69eceeeaae" > delete_number< / a > (num);< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   exit(EXIT_FAILURE);< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   }< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   num-> < a class = "code" href = "../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0" > num_digits< / a > ++;< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   num-> < a class = "code" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > = (< span class = "keywordtype" > char< / span > *)realloc(num-> < a class = "code" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > , num-> < a class = "code" 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 name = "l00059" > < / a > < span class = "lineno" > 59< / span >   num-> < a class = "code" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > [num-> < a class = "code" href = "../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0" > num_digits< / a > - 1] = value;< / div >
< div class = "line" > < a 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" >
< div class = "center" > < iframe scrolling = "no" frameborder = "0" src = "../../d6/d3d/factorial__large__number_8c_af2869d36c22a2b8f93d3166a84e124b3_cgraph.svg" width = "240" height = "38" > < 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 = "ab5c854e0df76165c31899e69eceeeaae" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#ab5c854e0df76165c31899e69eceeeaae" > ◆ < / a > < / span > delete_number()< / h2 >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< 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 >
< div class = "fragment" > < div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   {< / div >
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< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < a class = "code" href = "../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768" > free< / a > (num-> < a class = "code" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > );< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < a class = "code" href = "../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768" > free< / a > (num);< / div >
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< div class = "line" > < a 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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< a id = "ad8101f58545bd891ae8b6e11caadd7eb" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#ad8101f58545bd891ae8b6e11caadd7eb" > ◆ < / a > < / span > new_number()< / h2 >
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< td class = "memname" > < a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html#ab54882961780c41a4929a6d390f6522d" > large_num< / a > * new_number < / td >
< td > (< / td >
< td class = "paramtype" > void  < / td >
< td class = "paramname" > < / td > < td > )< / td >
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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 name = "l00025" > < / a > < span class = "lineno" > 25< / span >   {< / div >
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< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < a class = "code" href = "../../d3/d5a/struct__large__num.html" > large_num< / a > *new_num = (< a class = "code" href = "../../d3/d5a/struct__large__num.html" > large_num< / a > *)< a class = "code" href = "../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee" > malloc< / a > (< span class = "keyword" > sizeof< / span > (< a class = "code" href = "../../d3/d5a/struct__large__num.html" > large_num< / a > ));< / div >
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< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   new_num-> < a class = "code" href = "../../d3/d5a/struct__large__num.html#a3fd11c0b413bbabfb8737d4ae73e5aa0" > num_digits< / a > = 1;< / div >
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< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   new_num-> < a class = "code" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > = (< span class = "keywordtype" > char< / span > *)< a class = "code" href = "../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee" > malloc< / a > (1 * < span class = "keyword" > sizeof< / span > (< span class = "keywordtype" > char< / span > ));< / div >
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< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   new_num-> < a class = "code" href = "../../d3/d5a/struct__large__num.html#afaf353a072cf050ac86ac6e39868bcc9" > digits< / a > [0] = 1;< / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "keywordflow" > return< / span > new_num;< / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   }< / div >
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< 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 >
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< 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 >
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< li class = "navelem" > < a class = "el" href = "../../dir_a52f4d3d586a58b02f3a4ddf0a992157.html" > misc< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../d6/d3d/factorial__large__number_8c.html" > factorial_large_number.c< / a > < / li >
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< li class = "footer" > Generated by < a href = "https://www.doxygen.org/index.html" > < img class = "footer" src = "../../doxygen.svg" width = "104" height = "31" alt = "doxygen" / > < / a > 1.9.1 < / li >
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