1STRRCHR(3P)                POSIX Programmer's Manual               STRRCHR(3P)
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PROLOG

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

12       strrchr — string scanning operation
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SYNOPSIS

15       #include <string.h>
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17       char *strrchr(const char *s, int c);
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DESCRIPTION

20       The functionality described on this reference page is aligned with  the
21       ISO C  standard.  Any  conflict between the requirements described here
22       and the ISO C standard is unintentional. This  volume  of  POSIX.1‐2017
23       defers to the ISO C standard.
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25       The strrchr() function shall locate the last occurrence of c (converted
26       to a char) in the string pointed to by s.  The terminating NUL  charac‐
27       ter is considered to be part of the string.
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RETURN VALUE

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

34       No errors are defined.
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36       The following sections are informative.
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EXAMPLES

39   Finding the Base Name of a File
40       The following example uses strrchr() to get a pointer to the base  name
41       of  a  file. The strrchr() function searches backwards through the name
42       of the file to find the last '/' character in name.  This pointer (plus
43       one) will point to the base name of the file.
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46           #include <string.h>
47           ...
48           const char *name;
49           char *basename;
50           ...
51           basename = strrchr(name, '/') + 1;
52           ...
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APPLICATION USAGE

55       None.
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RATIONALE

58       None.
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FUTURE DIRECTIONS

61       None.
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SEE ALSO

64       strchr()
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66       The Base Definitions volume of POSIX.1‐2017, <string.h>
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69       Portions  of  this text are reprinted and reproduced in electronic form
70       from IEEE Std 1003.1-2017, Standard for Information Technology --  Por‐
71       table  Operating System Interface (POSIX), The Open Group Base Specifi‐
72       cations Issue 7, 2018 Edition, Copyright (C) 2018 by the  Institute  of
73       Electrical  and  Electronics Engineers, Inc and The Open Group.  In the
74       event of any discrepancy between this version and the original IEEE and
75       The  Open Group Standard, the original IEEE and The Open Group Standard
76       is the referee document. The original Standard can be  obtained  online
77       at http://www.opengroup.org/unix/online.html .
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79       Any  typographical  or  formatting  errors that appear in this page are
80       most likely to have been introduced during the conversion of the source
81       files  to  man page format. To report such errors, see https://www.ker‐
82       nel.org/doc/man-pages/reporting_bugs.html .
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86IEEE/The Open Group                  2017                          STRRCHR(3P)
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