Does a case-insensitive comparison of two 7-bit ASCII strings.
#include <strings.h> int strcasecmp (const char *s1, const char *s2);
The strcasecmp function works for 7-bit ASCII compares only. Do not use this function for internationalized applications.
n | An integer value greater than, equal to, or less than 0 (zero), depending on whether the s1 string is greater than, equal to, or less than the s2 string. |