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FreeBSD 11.0 - man page for strrchr (freebsd section 3)

STRCHR(3)						   BSD Library Functions Manual 						 STRCHR(3)

NAME
strchr, strrchr, strchrnul -- locate character in string
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <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 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 ISO/IEC 9899:1990 (``ISO C90''). The strchrnul() is a GNU extension . History The strchrnul() function first appeared in glibc 2.1.1 and was added in FreeBSD 10.0.
BSD
February 13, 2013 BSD

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