1 /* Cross platform case insensitive string compare functions
2  */
3 
4 #include "Python.h"
5 
6 int
PyOS_mystrnicmp(const char * s1,const char * s2,Py_ssize_t size)7 PyOS_mystrnicmp(const char *s1, const char *s2, Py_ssize_t size)
8 {
9     const unsigned char *p1, *p2;
10     if (size == 0)
11         return 0;
12     p1 = (const unsigned char *)s1;
13     p2 = (const unsigned char *)s2;
14     for (; (--size > 0) && *p1 && *p2 && (tolower(*p1) == tolower(*p2));
15          p1++, p2++) {
16         ;
17     }
18     return tolower(*p1) - tolower(*p2);
19 }
20 
21 int
PyOS_mystricmp(const char * s1,const char * s2)22 PyOS_mystricmp(const char *s1, const char *s2)
23 {
24     const unsigned char *p1 = (const unsigned char *)s1;
25     const unsigned char *p2 = (const unsigned char *)s2;
26     for (; *p1 && *p2 && (tolower(*p1) == tolower(*p2)); p1++, p2++) {
27         ;
28     }
29     return (tolower(*p1) - tolower(*p2));
30 }
31