63 lines
1.1 KiB
C
63 lines
1.1 KiB
C
/*
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FUNCTION
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<<wcsdup>>---wide character string duplicate
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INDEX
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wcsdup
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INDEX
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_wcsdup_r
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ANSI_SYNOPSIS
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#include <wchar.h>
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wchar_t *wcsdup(const wchar_t *<[str]>);
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#include <wchar.h>
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wchar_t *_wcsdup_r(struct _reent *<[ptr]>, const wchar_t *<[str]>);
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TRAD_SYNOPSIS
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#include <wchar.h>
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wchar_t *wcsdup(<[ptr]>, <[str]>)
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struct _reent *<[ptr]>;
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wchar_t *<[str]>;
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DESCRIPTION
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<<wcsdup>> allocates a new wide character string using <<malloc>>,
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and copies the content of the argument <[str]> into the newly
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allocated string, thus making a copy of <[str]>.
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RETURNS
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<<wcsdup>> returns a pointer to the copy of <[str]> if enough
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memory for the copy was available. Otherwise it returns NULL
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and errno is set to ENOMEM.
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PORTABILITY
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POSIX-1.2008
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QUICKREF
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wcsdup
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*/
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#include <reent.h>
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#include <stdlib.h>
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#include <wchar.h>
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wchar_t *
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_wcsdup_r (struct _reent *p, const wchar_t *str)
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{
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size_t len = wcslen (str) + 1;
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wchar_t *copy = _malloc_r (p, len * sizeof (wchar_t));
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if (copy)
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wmemcpy (copy, str, len);
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return copy;
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}
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#ifndef _REENT_ONLY
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wchar_t *
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wcsdup (const wchar_t *str)
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{
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return _wcsdup_r (_REENT, str);
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}
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#endif /* !_REENT_ONLY */
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