sortix-mirror/libc/stdlib/abs.cpp

/*******************************************************************************

    Copyright(C) Jonas 'Sortie' Termansen 2012.

    This file is part of the Sortix C Library.

    The Sortix C 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 3 of the License, or (at your
    option) any later version.

    The Sortix C 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 the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.

    stdlib/abs.cpp
    Allows taking the absolute value of integer types.

*******************************************************************************/

#include <stdint.h>
#include <stdlib.h>
#include <inttypes.h>

template <class T> T Absolute(T t)
{
	return t < 0 ? -t : t;
}

extern "C" int abs(int val) { return Absolute(val); }
extern "C" long int labs(long int val) { return Absolute(val); }
extern "C" long long int llabs(long long int val) { return Absolute(val); }
extern "C" intmax_t imaxabs(intmax_t val) { return Absolute(val); }