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STRCHR(3) Library Functions Manual STRCHR(3) NAME strchr, strchrnul - locate character in string LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <string.h> char * strchr(const char *s, int c); char * strchrnul(const char *s, int c); DESCRIPTION The strchr() and strchrnul() functions locate the first occurrence of c in the string pointed to by s. The terminating NUL character is considered part of the string. If c is `\0', strchr() and strchrnul() locate the terminating `\0'. RETURN VALUES The function strchr() returns a pointer to the located character, or NULL if the character does not appear in the string. The function strchrnul() returns a pointer to the located character, or a pointer to the NUL terminating character of the string if the character does not appear in the string. EXAMPLES After the following call to strchr(), p will point to the string "oobar": char *p; char *s = "foobar"; p = strchr(s, 'o'); SEE ALSO index(3), memchr(3), rindex(3), strcspn(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3) STANDARDS The strchr() function conforms to ANSI X3.159-1989 ("ANSI C89"). strchrnul() function appeared in NetBSD 8. NetBSD 9.99 November 27, 2020 NetBSD 9.99