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2019-03-06
Aliases: rindex(3), rindex(3), rindex(3), rindex(3), rindex(3), rindex(3), rindex(3), rindex(3), rindex(3), rindex(3), rindex(3), rindex(3)

manpages-dev

Manual pages about using GNU/Linux for development

libbson-doc

Library to parse and generate BSON documents - documentation

libmongoc-doc

MongoDB C client library - documentation

man-pages

Linux kernel and C library user-space interface documentation

NAME

index, rindex - locate character in string

SYNOPSIS

#include <strings.h>

char *index(const char *s, int c);
char *rindex(const char *s, int c);

DESCRIPTION

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 (\(aq\0\(aq) is considered to be a part of the strings.

RETURN VALUE

The index() and rindex() functions return a pointer to the matched character or NULL if the character is not found.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).
Interface Attribute Value
Thread safety MT-Safe

CONFORMING TO

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.

COLOPHON

This page is part of release 5.00 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/.
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