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69 lines
1.8 KiB
Objective-C
69 lines
1.8 KiB
Objective-C
/*
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* NumberParsing.m
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*
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* Copyright (c) 2017-present, MacPaw Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#import "NumberParsing.h"
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int64_t ParseNumberWithBase(const char *num,int length,int base)
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{
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char cstr[length+1];
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memcpy(cstr,num,length);
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cstr[length]=0;
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return strtoll(cstr,NULL,base);
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}
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int64_t ParseDecimalNumber(const char *num,int length)
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{
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return ParseNumberWithBase(num,length,10);
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}
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int64_t ParseHexadecimalNumber(const char *num,int length)
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{
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return ParseNumberWithBase(num,length,16);
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}
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int64_t ParseOctalNumber(const char *num,int length)
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{
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return ParseNumberWithBase(num,length,8);
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}
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@implementation CSHandle (NumberParsing)
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-(int64_t)readDecimalNumberWithDigits:(int)numdigits
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{
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char buf[numdigits];
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[self readBytes:numdigits toBuffer:buf];
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return ParseDecimalNumber(buf,numdigits);
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}
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-(int64_t)readHexadecimalNumberWithDigits:(int)numdigits
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{
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char buf[numdigits];
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[self readBytes:numdigits toBuffer:buf];
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return ParseHexadecimalNumber(buf,numdigits);
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}
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-(int64_t)readOctalNumberWithDigits:(int)numdigits
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{
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char buf[numdigits];
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[self readBytes:numdigits toBuffer:buf];
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return ParseOctalNumber(buf,numdigits);
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}
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@end
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