Commit 5d44e6a9 authored by mux's avatar mux
Browse files

Add copysignf

* Fix #692
parent 4039a266
......@@ -72,6 +72,7 @@ float __attribute__((pcs("aapcs"))) __aeabi_d2f(double x) {
fx.m = (dx.m>>(52-23)); // right justify
return fx.f;
}
double __aeabi_dmul(double x , double y) {
return 0.0;
......@@ -85,6 +86,18 @@ float sqrtf(float x) {
return x;
}
#ifndef NDEBUG
float copysignf(float x, float y) {
float_s_t fx={.f = x};
float_s_t fy={.f = y};
// copy sign bit;
fx.s = fy.s;
return fx.f;
}
#endif
// some compilers define log2f in terms of logf
#ifdef log2f
#undef log2f
......
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