tolower.c

Nucleus Common Library for Integrator using ARM Developer Suite

/*************************************************************************
*
*               Copyright Mentor Graphics Corporation 2002
*                         All Rights Reserved.
*
* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS
* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS
* SUBJECT TO LICENSE TERMS.
*
*************************************************************************/

/*************************************************************************
* FILE NAME                                     VERSION
*
*       tolower.c                               Nucleus Common Library 1.1
*
* DESCRIPTION
*
*       This file contains the implementation of NCL_tolower.
*
* DATA STRUCTURES
*
*       None.
*
* FUNCTIONS
*
*       NCL_tolower
*
* DEPENDENCIES
*
*       ncl.h.h
*       ctype.h
*       nucleus.h
*
************************************************************************/

#define NU_NCL_SOURCE_FILE

#include "ncl\inc\ncl.h"
#include "ncl\inc\ctype.h"
#include "plus\nucleus.h"                                /* MMU Support */

#undef NCL_tolower

/*************************************************************************
*
*   FUNCTION
*
*       NCL_tolower
*
*   DESCRIPTION
*
*       Converts a character to lowercase if it is uppercase.
*
*   INPUTS
*
*       c                   The character to convert
*
*   OUTPUTS
*
*       int                 The converted character
*
*************************************************************************/

int NCL_tolower(register int c)
{
    c = (c >= 'A' && c <= 'Z') ? c-'A'+'a' : c;

    return c;
}