strrchr(3p) — Linux manual page

STRRCHR(3P)             POSIX Programmer's Manual             STRRCHR(3P)

PROLOG         top

       This manual page is part of the POSIX Programmer's Manual.  The
       Linux implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior), or
       the interface may not be implemented on Linux.

NAME         top

       strrchr — string scanning operation

SYNOPSIS         top

       #include <string.h>

       char *strrchr(const char *s, int c);

DESCRIPTION         top

       The functionality described on this reference page is aligned with
       the ISO C standard. Any conflict between the requirements
       described here and the ISO C standard is unintentional. This
       volume of POSIX.1‐2017 defers to the ISO C standard.

       The strrchr() function shall locate the last occurrence of c
       (converted to a char) in the string pointed to by s.  The
       terminating NUL character is considered to be part of the string.

RETURN VALUE         top

       Upon successful completion, strrchr() shall return a pointer to
       the byte or a null pointer if c does not occur in the string.

ERRORS         top

       No errors are defined.

       The following sections are informative.

EXAMPLES         top

   Finding the Base Name of a File
       The following example uses strrchr() to get a pointer to the base
       name of a file. The strrchr() function searches backwards through
       the name of the file to find the last '/' character in name.  This
       pointer (plus one) will point to the base name of the file.

           #include <string.h>
           ...
           const char *name;
           char *basename;
           ...
           basename = strrchr(name, '/') + 1;
           ...

APPLICATION USAGE         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       strchr(3p)

       The Base Definitions volume of POSIX.1‐2017, string.h(0p)

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic
       form from IEEE Std 1003.1-2017, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The
       Open Group Base Specifications Issue 7, 2018 Edition, Copyright
       (C) 2018 by the Institute of Electrical and Electronics Engineers,
       Inc and The Open Group.  In the event of any discrepancy between
       this version and the original IEEE and The Open Group Standard,
       the original IEEE and The Open Group Standard is the referee
       document. The original Standard can be obtained online at
       http://www.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in this page
       are most likely to have been introduced during the conversion of
       the source files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group                2017                       STRRCHR(3P)

Pages that refer to this page: string.h(0p),  strchr(3p),  strpbrk(3p)

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