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GoogleCodeExporter avatar GoogleCodeExporter commented on July 18, 2024
新建个 .cc 的文件, 自己实现一个 hypot 函数:

extern double fabs(double);
extern double sqrt(double);

#ifdef __cplusplus
extern "C" {
double hypot(double x, double y) {
  double ax = fabs(x), ay = fabs(y);
  double xy = x/y, yx = y/x;
  return ax > ay
    ? ax * sqrt(1.0 + yx*yx)
    : ay * sqrt(1.0 + xy*xy);
}
}
#endif // __cplusplus

Original comment by [email protected] on 15 Mar 2015 at 6:49

from telepresence.

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