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Man Pages


Manual Reference Pages  -  STRCHR (3)

NAME

strchr, strrchr, strchrnul - locate character in string

CONTENTS

Library
Synopsis
Description
Return Values
See Also
Standards
History

LIBRARY


.Lb libc

SYNOPSIS


.In string.h char * strchr const char *s int c char * strrchr const char *s int c char * strchrnul const char *s int c

DESCRIPTION

The strchr function locates the first occurrence of c (converted to a
.Vt char ) in the string pointed to by s. The terminating null character is considered part of the string; therefore if c is \0’, the functions locate the terminating \0’.

The strrchr function is identical to strchr except it locates the last occurrence of c.

The strchrnul function is identical to strchr except that if c is not found in s a pointer to the terminating \0’ is returned.

RETURN VALUES

The functions strchr and strrchr return a pointer to the located character, or NULL if the character does not appear in the string.

strchrnul returns a pointer to the terminating \0’ if the character does not appear in the string.

SEE ALSO

memchr(3), memmem(3), strcspn(3), strpbrk(3), strsep(3), strspn(3), strstr(3), strtok(3), wcschr(3)

STANDARDS

The functions strchr and strrchr conform to -isoC. The strchrnul is a GNU extension .

History

The strchrnul function first appeared in glibc 2.1.1 and was added in
.Fx 10.0 .
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