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/*
* PCG Random Number Generation for C.
*
* Copyright 2014 Melissa O'Neill <oneill@pcg-random.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* For additional information about the PCG random number generation scheme,
* including its license and other licensing options, visit
*
* http://www.pcg-random.org
*/
/*
* This code is derived from the canonical C++ PCG implementation, which
* has many additional features and is preferable if you can use C++ in
* your project.
*
* The contents of this file were mechanically derived from pcg_variants.h
* (every inline function defined there gets an exern declaration here).
*/
#include "pcg_variants.h"
#if PCG_HAS_128BIT_OPS
static pcg64_random_t pcg64_global = PCG64_INITIALIZER;
uint64_t pcg64_random()
{
return pcg64_random_r(&pcg64_global);
}
uint64_t pcg64_boundedrand(uint64_t bound)
{
return pcg64_boundedrand_r(&pcg64_global, bound);
}
void pcg64_srandom(pcg128_t seed, pcg128_t seq)
{
pcg64_srandom_r(&pcg64_global, seed, seq);
}
void pcg64_advance(pcg128_t delta)
{
pcg64_advance_r(&pcg64_global, delta);
}
#endif
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