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STRCASECMP (3) | C library functions | Unix Manual Pages | :man

NAME

strcasecmp, strncasecmp - compare strings, ignoring case

CONTENTS

Library
Synopsis
Description
Return Values
See Also
History

LIBRARY


.Lb libc

SYNOPSIS


.In 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 null-terminated strings s1 and s2.

The strncasecmp compares at most len characters.

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 ‘\0’.

SEE ALSO

bcmp(3), memcmp(3), strcmp(3), strcoll(3), strxfrm(3), tolower(3)

HISTORY


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