/** @file | |
Case conversion function implementations for <ctype.h> | |
The tolower function converts an uppercase letter to a corresponding | |
lowercase letter. If the argument is a character for which isupper | |
is true and there are one or more corresponding characters, as | |
specified by the current locale, for which islower is true, the tolower | |
function returns one of the corresponding characters (always the same one | |
for any given locale); otherwise, the argument is returned unchanged. | |
The toupper function converts a lowercase letter to a corresponding | |
uppercase letter. If the argument is a character for which islower is true | |
and there are one or more corresponding characters, as specified by the | |
current locale, for which isupper is true, the toupper function returns one | |
of the corresponding characters (always the same one for any given locale); | |
otherwise, the argument is returned unchanged. | |
Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR> | |
This program and the accompanying materials are licensed and made available under | |
the terms and conditions of the BSD License that accompanies this distribution. | |
The full text of the license may be found at | |
http://opensource.org/licenses/bsd-license. | |
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
**/ | |
#include <LibConfig.h> | |
#define NO_CTYPE_MACROS // So that we don't define the classification macros | |
#include <ctype.h> | |
/** The tolower function converts an uppercase letter to a corresponding | |
lowercase letter. | |
@param[in] c The character to be converted. | |
@return If the argument is a character for which isupper is true and | |
there are one or more corresponding characters, as specified by | |
the current locale, for which islower is true, the tolower | |
function returns one of the corresponding characters (always the | |
same one for any given locale); otherwise, the argument is | |
returned unchanged. | |
**/ | |
int | |
tolower( | |
IN int _c | |
) | |
{ | |
return (isupper(_c) ? _lConvT[_c] : _c); | |
} | |
/** The toupper function converts a lowercase letter to a corresponding | |
uppercase letter. | |
@param[in] c The character to be converted. | |
@return If the argument is a character for which islower is true and | |
there are one or more corresponding characters, as specified by | |
the current locale, for which isupper is true, the toupper | |
function returns one of the corresponding characters (always the | |
same one for any given locale); otherwise, the argument is | |
returned unchanged. | |
**/ | |
int | |
toupper( | |
IN int _c | |
) | |
{ | |
return (islower(_c) ? _uConvT[_c] : _c); | |
} |