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DSP_fft16x16r.c文件里的d2s( )

user6501245
Prodigy 210 points


如图，请问在DSP_fft16x16r.c文件里的这个d2s( )是起什么作用的，在哪里能找到？

  • 0
    TI__Guru** 110395 points
    /* D2S -- Truncate a 'double' to a 'short', with clamping. */

    /* ======================================================================== */

    static short d2s(double d)

    {

    if (d >= 32767.0) return 32767;

    if (d <= -32768.0) return -32768;

    return (short)d;

    }
    可以看一下gen_twiddle_fft16x16.c的源码