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strcasecmp(3) [netbsd man page]

STRCASECMP(3)						   BSD Library Functions Manual 					     STRCASECMP(3)

NAME
strcasecmp, strncasecmp -- compare strings, ignoring case LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <strings.h> int strcasecmp(const char *s1, const char *s2); int strncasecmp(const char *s1, const char *s2, size_t len); DESCRIPTION
The strcasecmp() and strncasecmp() functions compare the nul-terminated strings s1 and s2 and return an integer greater than, equal to, or less than 0, according to whether s1 is lexicographically greater than, equal to, or less than s2 after translation of each corresponding character to lower-case. The strings themselves are not modified. The comparison is done using unsigned characters, so that '200' is greater than ''. The strncasecmp() compares at most len characters. SEE ALSO
bcmp(3), memcmp(3), strcmp(3), strcoll(3), strxfrm(3) HISTORY
The strcasecmp() and strncasecmp() functions first appeared in 4.4BSD. NOTES
If len is zero strncasecmp() returns always 0. BSD
June 9, 1993 BSD

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STRCASECMP(3)						   BSD Library Functions Manual 					     STRCASECMP(3)

NAME
strcasecmp, strcasecmp_l, strncasecmp, strncasecmp_l -- compare strings, ignoring case LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <strings.h> int strcasecmp(const char *s1, const char *s2); int strncasecmp(const char *s1, const char *s2, size_t n); #include <strings.h> #include <xlocale.h> int strcasecmp_l(const char *s1, const char *s2, locale_t loc); int strncasecmp_l(const char *s1, const char *s2, size_t n, locale_t loc); DESCRIPTION
The strcasecmp() and strncasecmp() functions compare the null-terminated strings s1 and s2. The strncasecmp() compares at most n characters. Although the strcasecmp() and strncasecmp() functions use the current locale, the strcasecmp_l() and strncasecmp_l() functions may be passed locales directly. See xlocale(3) for more information. RETURN VALUES
The strcasecmp() and strncasecmp() return an integer greater than, equal to, or less than 0, according as s1 is lexicographically greater than, equal to, or less than s2 after translation of each corresponding character to lower-case. The strings themselves are not modified. The comparison is done using unsigned characters, so that '200' is greater than ''. SEE ALSO
bcmp(3), memcmp(3), strcmp(3), strcoll(3), strxfrm(3), tolower(3), xlocale(3) HISTORY
The strcasecmp() and strncasecmp() functions first appeared in 4.4BSD. Their prototypes existed previously in <string.h> before they were moved to <strings.h> for IEEE Std 1003.1-2001 (``POSIX.1'') compliance. BSD
June 9, 1993 BSD

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