54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
|
/*
|
||
|
|
* Copyright 2011, Ben Langmead <langmea@cs.jhu.edu>
|
||
|
|
*
|
||
|
|
* This file is part of Bowtie 2.
|
||
|
|
*
|
||
|
|
* Bowtie 2 is free software: you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation, either version 3 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* Bowtie 2 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 General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with Bowtie 2. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef UTIL_H_
|
||
|
|
#define UTIL_H_
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <limits>
|
||
|
|
|
||
|
|
/**
|
||
|
|
* C++ version char* style "itoa":
|
||
|
|
*/
|
||
|
|
template<typename T>
|
||
|
|
char* itoa10(const T& value, char* result) {
|
||
|
|
// Check that base is valid
|
||
|
|
char* out = result;
|
||
|
|
T quotient = value;
|
||
|
|
if(std::numeric_limits<T>::is_signed) {
|
||
|
|
if(quotient <= 0) quotient = 0-quotient;
|
||
|
|
}
|
||
|
|
// Now write each digit from most to least significant
|
||
|
|
do {
|
||
|
|
*out = "0123456789"[quotient % 10];
|
||
|
|
++out;
|
||
|
|
quotient /= 10;
|
||
|
|
} while (quotient > 0);
|
||
|
|
// Only apply negative sign for base 10
|
||
|
|
if(std::numeric_limits<T>::is_signed) {
|
||
|
|
// Avoid compiler warning in cases where T is unsigned
|
||
|
|
if (value <= 0 && value != 0) *out++ = '-';
|
||
|
|
}
|
||
|
|
reverse( result, out );
|
||
|
|
*out = 0; // terminator
|
||
|
|
return out;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /*ndef UTIL_H_*/
|