XADMaster/NumberParsing.m
2018-03-21 14:24:50 +02:00

69 lines
1.8 KiB
Objective-C

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