2014-11-01 07:08
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The following snippet of C code is from rtl_fm.c which is part of the rtlsdr project (I've added the printf statement)

for (i=0; i<(int)len; i++) {
    s->buf16[i] = (int16_t)buf[i] - 127; 
printf("buf %x %x, buf16 %x %x
", buf[0],buf[1], s->buf16[0], s->buf16[1]);

An example line of output is: buf 7c 82, buf16 fffd 3

buf16 is an array of type int16_t, buf is an array of bytes (char*), len is length of buf

I'd like to port this to Go. Here is what I've come up with: http://play.golang.org/p/zTRkjlz8Ll however it doesn't produce the correct output.

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  • dongmeng1402 2014-11-01 07:32

    For example,

    package main
    import (
    func main() {
        buf := []byte{0x7c, 0x82}
        buf16 := make([]int16, len(buf))
        for i := range buf {
            buf16[i] = int16(buf[i]) - 127
            "buf %x %x, buf16 %x %x
            buf[0], buf[1], uint16(buf16[0]), uint16(buf16[1]),


    buf 7c 82, buf16 fffd 3
    解决 无用
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