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[/] [openrisc/] [tags/] [gnu-src/] [newlib-1.18.0/] [newlib-1.18.0-or32-1.0rc1/] [newlib/] [libc/] [string/] [strcasecmp.c] - Rev 345
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/* FUNCTION <<strcasecmp>>---case-insensitive character string compare INDEX strcasecmp ANSI_SYNOPSIS #include <string.h> int strcasecmp(const char *<[a]>, const char *<[b]>); TRAD_SYNOPSIS #include <string.h> int strcasecmp(<[a]>, <[b]>) char *<[a]>; char *<[b]>; DESCRIPTION <<strcasecmp>> compares the string at <[a]> to the string at <[b]> in a case-insensitive manner. RETURNS If <<*<[a]>>> sorts lexicographically after <<*<[b]>>> (after both are converted to lowercase), <<strcasecmp>> returns a number greater than zero. If the two strings match, <<strcasecmp>> returns zero. If <<*<[a]>>> sorts lexicographically before <<*<[b]>>>, <<strcasecmp>> returns a number less than zero. PORTABILITY <<strcasecmp>> is in the Berkeley Software Distribution. <<strcasecmp>> requires no supporting OS subroutines. It uses tolower() from elsewhere in this library. QUICKREF strcasecmp */ #include <string.h> #include <ctype.h> int _DEFUN (strcasecmp, (s1, s2), _CONST char *s1 _AND _CONST char *s2) { _CONST unsigned char *ucs1 = (_CONST unsigned char *) s1; _CONST unsigned char *ucs2 = (_CONST unsigned char *) s2; int d = 0; for ( ; ; ) { _CONST int c1 = tolower(*ucs1++); _CONST int c2 = tolower(*ucs2++); if (((d = c1 - c2) != 0) || (c2 == '\0')) break; } return d; }