cpython/Python/pystrcmp.c at 3.7 · python/cpython · GitHub

Name: cpython/Python/pystrcmp.c at 3.7 · python/cpython · GitHub
Rating: 4.5 (5274 reviews)
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/* Cross platform case insensitive string compare functions
 */

#include"Python.h"

int
PyOS_mystrnicmp(constchar*s1, constchar*s2, Py_ssize_tsize)
{
if (size==0)
return0;
while ((--size>0) &&
 (tolower((unsigned)*s1) ==tolower((unsigned)*s2))) {
if (!*s1++|| !*s2++)
break;
 }
returntolower((unsigned)*s1) -tolower((unsigned)*s2);
}

int
PyOS_mystricmp(constchar*s1, constchar*s2)
{
while (*s1&& (tolower((unsigned)*s1++) ==tolower((unsigned)*s2++))) {
 ;
 }
return (tolower((unsigned)*s1) -tolower((unsigned)*s2));
}