Source/WebKit/chromium/tests/TreeTestHelpers.h

/*
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// Simple pseudorandom number generator helper functions, used by the
// red-black and interval tree tests.
//
// These are **not** thread safe!

#ifndef TreeTestHelpers_h
#define TreeTestHelpers_h

#include <stdint.h>

namespace WebCore {
namespace TreeTestHelpers {

// Generates a seed value to be passed to initRandom().
int32_t generateSeed();

// Initializes the pseudo-random number generator with a specific seed.
void initRandom(const int32_t seed);

// Produces the next pseudo-random number in the sequence, in the
// range from [0..maximumValue). Negative numbers are not allowed and will
// produce undefined results.
int32_t nextRandom(const int32_t maximumValue);

} // namespace TreeTestHelpers
} // namespace WebCore

#endif // TreeTestHelpers_h