/*
|
/*
|
FUNCTION
|
FUNCTION
|
<<toupper>>---translate characters to uppercase
|
<<toupper>>---translate characters to uppercase
|
|
|
INDEX
|
INDEX
|
toupper
|
toupper
|
INDEX
|
INDEX
|
_toupper
|
_toupper
|
|
|
ANSI_SYNOPSIS
|
ANSI_SYNOPSIS
|
#include <ctype.h>
|
#include <ctype.h>
|
int toupper(int <[c]>);
|
int toupper(int <[c]>);
|
int _toupper(int <[c]>);
|
int _toupper(int <[c]>);
|
|
|
TRAD_SYNOPSIS
|
TRAD_SYNOPSIS
|
#include <ctype.h>
|
#include <ctype.h>
|
int toupper(<[c]>);
|
int toupper(<[c]>);
|
int _toupper(<[c]>);
|
int _toupper(<[c]>);
|
|
|
|
|
DESCRIPTION
|
DESCRIPTION
|
<<toupper>> is a macro which converts lowercase characters to uppercase,
|
<<toupper>> is a macro which converts lowercase characters to uppercase,
|
leaving all other characters unchanged. It is only defined when
|
leaving all other characters unchanged. It is only defined when
|
<[c]> is an integer in the range <<EOF>> to <<255>>.
|
<[c]> is an integer in the range <<EOF>> to <<255>>.
|
|
|
You can use a compiled subroutine instead of the macro definition by
|
You can use a compiled subroutine instead of the macro definition by
|
undefining this macro using `<<#undef toupper>>'.
|
undefining this macro using `<<#undef toupper>>'.
|
|
|
<<_toupper>> performs the same conversion as <<toupper>>, but should
|
<<_toupper>> performs the same conversion as <<toupper>>, but should
|
only be used when <[c]> is known to be a lowercase character (<<a>>--<<z>>).
|
only be used when <[c]> is known to be a lowercase character (<<a>>--<<z>>).
|
|
|
RETURNS
|
RETURNS
|
<<toupper>> returns the uppercase equivalent of <[c]> when it is a
|
<<toupper>> returns the uppercase equivalent of <[c]> when it is a
|
character between <<a>> and <<z>>, and <[c]> otherwise.
|
character between <<a>> and <<z>>, and <[c]> otherwise.
|
|
|
<<_toupper>> returns the uppercase equivalent of <[c]> when it is a
|
<<_toupper>> returns the uppercase equivalent of <[c]> when it is a
|
character between <<a>> and <<z>>. If <[c]> is not one of these
|
character between <<a>> and <<z>>. If <[c]> is not one of these
|
characters, the behaviour of <<_toupper>> is undefined.
|
characters, the behaviour of <<_toupper>> is undefined.
|
|
|
PORTABILITY
|
PORTABILITY
|
<<toupper>> is ANSI C. <<_toupper>> is not recommended for portable programs.
|
<<toupper>> is ANSI C. <<_toupper>> is not recommended for portable programs.
|
|
|
No supporting OS subroutines are required.
|
No supporting OS subroutines are required.
|
*/
|
*/
|
|
|
#include <_ansi.h>
|
#include <_ansi.h>
|
#include <ctype.h>
|
#include <ctype.h>
|
#if defined (_MB_EXTENDED_CHARSETS_ISO) || defined (_MB_EXTENDED_CHARSETS_WINDOWS)
|
#if defined (_MB_EXTENDED_CHARSETS_ISO) || defined (_MB_EXTENDED_CHARSETS_WINDOWS)
|
#include <limits.h>
|
#include <limits.h>
|
#include <stdio.h>
|
#include <stdio.h>
|
#include <stdlib.h>
|
#include <stdlib.h>
|
#include <wctype.h>
|
#include <wctype.h>
|
#include <wchar.h>
|
#include <wchar.h>
|
#endif
|
#endif
|
|
|
#undef toupper
|
#undef toupper
|
int
|
int
|
_DEFUN(toupper,(c),int c)
|
_DEFUN(toupper,(c),int c)
|
{
|
{
|
#if defined (_MB_EXTENDED_CHARSETS_ISO) || defined (_MB_EXTENDED_CHARSETS_WINDOWS)
|
#if defined (_MB_EXTENDED_CHARSETS_ISO) || defined (_MB_EXTENDED_CHARSETS_WINDOWS)
|
if ((unsigned char) c <= 0x7f)
|
if ((unsigned char) c <= 0x7f)
|
return islower (c) ? c - 'a' + 'A' : c;
|
return islower (c) ? c - 'a' + 'A' : c;
|
else if (c != EOF && MB_CUR_MAX == 1 && islower (c))
|
else if (c != EOF && MB_CUR_MAX == 1 && islower (c))
|
{
|
{
|
char s[MB_LEN_MAX] = { c, '\0' };
|
char s[MB_LEN_MAX] = { c, '\0' };
|
wchar_t wc;
|
wchar_t wc;
|
if (mbtowc (&wc, s, 1) >= 0
|
if (mbtowc (&wc, s, 1) >= 0
|
&& wctomb (s, (wchar_t) towupper ((wint_t) wc)) == 1)
|
&& wctomb (s, (wchar_t) towupper ((wint_t) wc)) == 1)
|
c = (unsigned char) s[0];
|
c = (unsigned char) s[0];
|
}
|
}
|
return c;
|
return c;
|
#else
|
#else
|
return islower (c) ? c - 'a' + 'A' : c;
|
return islower (c) ? c - 'a' + 'A' : c;
|
#endif
|
#endif
|
}
|
}
|
|
|
