/* * PCG Random Number Generation for C. * * Copyright 2014 Melissa O'Neill * * 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" /* * Rotate helper functions. */ #if PCG_HAS_128BIT_OPS extern inline pcg128_t pcg_rotr_128(pcg128_t value, unsigned int rot); #endif /* * Output functions. These are the core of the PCG generation scheme. */ // XSH RS // XSH RR // RXS M XS #if PCG_HAS_128BIT_OPS extern inline pcg128_t pcg_output_rxs_m_xs_128_128(pcg128_t state); #endif // XSL RR (only defined for >= 64 bits) // XSL RR RR (only defined for >= 64 bits) #if PCG_HAS_128BIT_OPS extern inline pcg128_t pcg_output_xsl_rr_rr_128_128(pcg128_t state); #endif