DESCRIPTION
The index 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 rindex function is identical to index, except it locates the last occurrence of c.
RETURN VALUES
The functions index and rindex return a pointer to the located character, or NULL if the character does not appear in the string.
SEE ALSO
memchr(3), strchr(3), strcspn(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3)
HISTORY
