xref: /titanic_50/usr/src/man/man3c/wstring.3c (revision f38cb554a534c6df738be3f4d23327e69888e634)
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Copyright (c) 1996, Sun Microsystems, Inc. All Rights Reserved
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WSTRING 3C "Dec 29, 1996"
NAME
wstring, wscasecmp, wsncasecmp, wsdup, wscol - Process Code string operations
SYNOPSIS

#include <widec.h>

int wscasecmp(const wchar_t *s1, const wchar_t *s2);

int wsncasecmp(const wchar_t *s1, const wchar_t *s2, int n);

wchar_t *wsdup(const wchar_t *s);

int wscol(const wchar_t *s);
DESCRIPTION

These functions operate on Process Code strings terminated by wchar_t null characters. During appending or copying, these routines do not check for an overflow condition of the receiving string. In the following, s, s1, and s2 point to Process Code strings terminated by a wchar_t null.

"wscasecmp(\|), wsncasecmp(\|)"

The wscasecmp() function compares its arguments, ignoring case, and returns an integer greater than, equal to, or less than 0, depending upon whether s1 is lexicographically greater than, equal to, or less than s2. It makes the same comparison but compares at most n Process Code characters. The four Extended Unix Code (EUC) codesets are ordered from lowest to highest as 0, 2, 3, 1 when characters from different codesets are compared.

"wsdup(\|)"

The wsdup() function returns a pointer to a new Process Code string, which is a duplicate of the string pointed to by s. The space for the new string is obtained using malloc(3C). If the new string cannot be created, a null pointer is returned.

"wscol(\|)"

The wscol() function returns the screen display width (in columns) of the Process Code string s.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE
MT-Level MT-Safe
SEE ALSO

malloc(3C), string(3C), wcstring(3C), attributes(5)