Program Listing for File utility.cpp

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#include "utility.h"

namespace PixelMaestro {

    // Must initialize static char value in source file.
    int32_t Utility::seed_ = 1;

    uint32_t Utility::abs_int(int32_t val) {
        return val > 0 ? val : -val;
    }

    int32_t Utility::rand(int32_t max) {
        seed_ = (seed_ * 1103515245U + 12345U) & 0x7fffffffU;
        if (max == 0) {
            return (int32_t)seed_;
        }
        else {
            return (int32_t)seed_ % max;
        }
    }

    void Utility::srand(int32_t seed) {
        seed_ = seed;
    }
}