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Man Pages


Manual Reference Pages  -  MEMCHR (3)

NAME

memchr - locate byte in byte string

CONTENTS

Library
Synopsis
Description
Return Values
See Also
Standards
History

LIBRARY


.Lb libc

SYNOPSIS


.In string.h void * memchr const void *b int c size_t len void * memrchr const void *b int c size_t len

DESCRIPTION

The memchr function locates the first occurrence of c (converted to an
.Vt unsigned char ) in string b.

The memrchr function behaves like memchr, except that it locates the last occurrence of c in string b.

RETURN VALUES

The memchr and memrchr functions return a pointer to the byte located, or NULL if no such byte exists within len bytes.

SEE ALSO

memmem(3), strchr(3), strcspn(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3), wmemchr(3)

STANDARDS

The memchr function conforms to -isoC.

The memrchr function is a GNU extension and conforms to no standard.

HISTORY

The memrchr function first appeared in GNU libc 2.1.91, this implementation first appeared in
.Fx 6.4 , coming from
.Ox 4.3 .
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