#ifndef TOOLS_IPC_FUZZER_MUTATE_RAND_UTIL_H_
#define TOOLS_IPC_FUZZER_MUTATE_RAND_UTIL_H_
#include "base/basictypes.h"
#include "third_party/mt19937ar/mt19937ar.h"
namespace ipc_fuzzer {
extern MersenneTwister* g_mersenne_twister;
void InitRand();
inline uint32 RandU32() {
return g_mersenne_twister->genrand_int32();
}
inline uint64 RandU64() {
return (static_cast<uint64>(RandU32()) << 32) | RandU32();
}
inline double RandDouble() {
uint64 rand_u64 = RandU64();
return *reinterpret_cast<double*>(&rand_u64);
}
inline uint32 RandInRange(uint32 range) {
return RandU32() % range;
}
inline bool RandEvent(uint32 frequency) {
return RandInRange(frequency) == 0;
}
}
#endif