45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
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// Copyright 2021 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "fuzzers/tint_ast_fuzzer/mt_rng.h"
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#include <cassert>
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namespace tint {
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namespace fuzzers {
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namespace ast_fuzzer {
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namespace {
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template <typename T>
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T RandomUInt(std::mt19937* rng, T bound) {
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assert(bound > 0 && "`bound` must be positive");
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return std::uniform_int_distribution<T>(0, bound - 1)(*rng);
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}
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} // namespace
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MtRng::MtRng(uint32_t seed) : rng_(seed) {}
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uint32_t MtRng::RandomUint32(uint32_t bound) {
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return RandomUInt(&rng_, bound);
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}
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uint64_t MtRng::RandomUint64(uint64_t bound) {
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return RandomUInt(&rng_, bound);
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}
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} // namespace ast_fuzzer
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} // namespace fuzzers
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} // namespace tint
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