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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON |
INDEX(3) Linux Programmer's Manual INDEX(3)
index, rindex - locate character in string
#include <strings.h>
char *index(const char *s, int c);
char *rindex(const char *s, int c);
The index() function returns a pointer to the first occurrence of the
character c in the string s.
The rindex() function returns a pointer to the last occurrence of the
character c in the string s.
The terminating null byte ('\0') is considered to be a part of the
strings.
The index() and rindex() functions return a pointer to the matched
character or NULL if the character is not found.
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────┼───────────────┼─────────┤
│index(), rindex() │ Thread safety │ MT-Safe │
└──────────────────┴───────────────┴─────────┘
4.3BSD; marked as LEGACY in POSIX.1-2001. POSIX.1-2008 removes the
specifications of index() and rindex(), recommending strchr(3) and
strrchr(3) instead.
memchr(3), strchr(3), string(3), strpbrk(3), strrchr(3), strsep(3),
strspn(3), strstr(3), strtok(3)
This page is part of release 4.12 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
GNU 2015-03-02 INDEX(3)
Pages that refer to this page: memchr(3), strchr(3), string(3), strpbrk(3), strsep(3), strspn(3), strstr(3), strtok(3)