wctomb(3c) - osol9

1wctomb(3C)               Standard C Library Functions               wctomb(3C)
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NAME

6       wctomb - convert a wide-character code to a character
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SYNOPSIS

9       #include <stdlib.h>
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11       int wctomb(char *s, wchar_t wchar);
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DESCRIPTION

15       The  wctomb()  function determines the number of bytes needed to repre‐
16       sent the character corresponding to the wide-character code whose value
17       is  wchar.  It  stores  the character representation (possibly multiple
18       bytes) in the array object pointed  to  by  s  (if  s  is  not  a  null
19       pointer). At most MB_CUR_MAX bytes are stored.
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22       A  call  with s as a null pointer causes this function to return 0. The
23       behavior of this function is affected by the LC_CTYPE category  of  the
24       current locale.
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RETURN VALUES

27       If  s  is  a null pointer, wctomb() returns 0 value. If s is not a null
28       pointer, wctomb() returns −1 if the value of wchar does not  correspond
29       to  a  valid  character, or returns the number of bytes that constitute
30       the character corresponding to the value of wchar.
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33       In no case will the value returned be greater than  the  value  of  the
34       MB_CUR_MAX macro.
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ERRORS

37       No errors are defined.
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USAGE

40       The  wctomb()  function  can be used safely in a multithreaded applica‐
41       tion, as long as setlocale(3C)  is  not  being  called  to  change  the
42       locale.
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ATTRIBUTES

45       See attributes(5) for descriptions of the following attributes:
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50       ┌─────────────────────────────┬─────────────────────────────┐
51       │ATTRIBUTE TYPE               │ATTRIBUTE VALUE              │
52       ├─────────────────────────────┼─────────────────────────────┤
53       │CSI                          │Enabled                      │
54       ├─────────────────────────────┼─────────────────────────────┤
55       │Interface Stability          │Standard                     │
56       ├─────────────────────────────┼─────────────────────────────┤
57       │MT-Level                     │MT-Safe with exceptions      │
58       └─────────────────────────────┴─────────────────────────────┘
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