cpython/Python/pystrcmp.c at e69d068ad0bd6a25434ea476a647b635da4d82bb · python/cpython · GitHub

Repository navigation

30 lines (27 loc) · 777 Bytes

/* Cross platform case insensitive string compare functions

#include "Python.h"

int

PyOS_mystrnicmp(const char *s1, const char *s2, Py_ssize_t size)

{

const unsigned char *p1, *p2;

if (size == 0)

return 0;

p1 = (const unsigned char *)s1;

p2 = (const unsigned char *)s2;

for (; (--size > 0) && *p1 && *p2 && (Py_TOLOWER(*p1) == Py_TOLOWER(*p2));

p1++, p2++) {

;

}

return Py_TOLOWER(*p1) - Py_TOLOWER(*p2);

}

int

PyOS_mystricmp(const char *s1, const char *s2)

{

const unsigned char *p1 = (const unsigned char *)s1;

const unsigned char *p2 = (const unsigned char *)s2;

for (; *p1 && *p2 && (Py_TOLOWER(*p1) == Py_TOLOWER(*p2)); p1++, p2++) {

;

}

return (Py_TOLOWER(*p1) - Py_TOLOWER(*p2));

}