/*
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* Copyright 2016 The Android Open Source Project
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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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*/
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#include "vts_datatype.h"
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#include <stdlib.h>
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#include <time.h>
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namespace android {
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namespace vts {
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void RandomNumberGeneratorReset() { srand(time(NULL)); }
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uint32_t RandomUint32() { return (unsigned int)rand(); }
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int32_t RandomInt32() { return rand(); }
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uint64_t RandomUint64() {
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uint64_t num = (unsigned int)rand();
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return (num << 32) | (unsigned int)rand();
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}
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int64_t RandomInt64() {
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int64_t num = rand();
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return (num << 32) | rand();
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}
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float RandomFloat() { return (float)rand() / (float)(RAND_MAX / 1000000000.0); }
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double RandomDouble() {
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return (double)rand() / (double)(RAND_MAX / 1000000000.0);
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}
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bool RandomBool() { return (abs(rand()) % 2) == 1; }
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char* RandomCharPointer() {
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int len = RandomUint32() % MAX_CHAR_POINTER_LENGTH;
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char* buf = (char*)malloc(len);
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buf[len - 1] = '\0';
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return buf;
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}
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void* RandomVoidPointer() {
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int len = RandomUint32() % MAX_CHAR_POINTER_LENGTH;
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void* buf = malloc(len);
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return buf;
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}
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} // namespace vts
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} // namespace android
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