1STRLEN(P)                  POSIX Programmer's Manual                 STRLEN(P)
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NAME

6       strlen - get string length
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SYNOPSIS

9       #include <string.h>
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11       size_t strlen(const char *s);
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DESCRIPTION

15       The  strlen()  function shall compute the number of bytes in the string
16       to which s points, not including the terminating null byte.
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RETURN VALUE

19       The strlen() function shall return the length of  s;  no  return  value
20       shall be reserved to indicate an error.
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ERRORS

23       No errors are defined.
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25       The following sections are informative.
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EXAMPLES

28   Getting String Lengths
29       The  following example sets the maximum length of key and data by using
30       strlen() to get the lengths of those strings.
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32
33              #include <string.h>
34              ...
35              struct element {
36                  char *key;
37                  char *data;
38              };
39              ...
40              char *key, *data;
41              int len;
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43
44              *keylength = *datalength = 0;
45              ...
46              if ((len = strlen(key)) > *keylength)
47                  *keylength = len;
48              if ((len = strlen(data)) > *datalength)
49                  *datalength = len;
50              ...
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APPLICATION USAGE

53       None.
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RATIONALE

56       None.
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FUTURE DIRECTIONS

59       None.
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SEE ALSO

62       The Base Definitions volume of IEEE Std 1003.1-2001, <string.h>
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65       Portions of this text are reprinted and reproduced in  electronic  form
66       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
67       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
68       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
69       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
70       event of any discrepancy between this version and the original IEEE and
71       The Open Group Standard, the original IEEE and The Open Group  Standard
72       is  the  referee document. The original Standard can be obtained online
73       at http://www.opengroup.org/unix/online.html .
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77IEEE/The Open Group                  2003                            STRLEN(P)
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