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b2bc0096dc
git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@15079 87f5fb63-7c3d-0410-a384-fd976d0f7a62
111 lines
2.4 KiB
C
111 lines
2.4 KiB
C
/*
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* $Id: debug_kgetnum1.c,v 1.3 2006-01-08 12:04:22 obarthel Exp $
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*
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* :ts=4
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*
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* Portable ISO 'C' (1994) runtime library for the Amiga computer
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* Copyright (c) 2002-2006 by Olaf Barthel <olsen (at) sourcery.han.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Neither the name of Olaf Barthel nor the names of contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "debug_headers.h"
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/****************************************************************************/
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LONG
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kgetnum(VOID)
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{
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LONG sum = 0;
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LONG result;
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BOOL is_negative = FALSE;
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LONG position = 0;
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LONG c;
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while(TRUE)
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{
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c = kgetc();
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if(c == '-')
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{
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if(position == 0)
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{
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is_negative = TRUE;
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kputc(c);
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position++;
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}
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}
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else if (c == '\b')
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{
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if(position > 0)
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{
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position--;
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if(position == 0)
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{
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is_negative = FALSE;
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sum = 0;
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}
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else
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{
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sum = sum / 10;
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}
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kputc(c);
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kputc(' ');
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kputc(c);
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}
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}
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else if (c == '\r')
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{
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kputc('\n');
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break;
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}
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else if ('0' <= c && c <= '9')
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{
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LONG new_sum;
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new_sum = sum * 10 + (c - '0');
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if(new_sum >= sum)
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{
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sum = new_sum;
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kputc(c);
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position++;
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}
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}
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}
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if(is_negative)
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result = (-sum);
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else
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result = sum;
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return(result);
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}
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