34 lines
409 B
C
34 lines
409 B
C
#include <math.h>
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int __signbitd(double x) {
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union fp {
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double d;
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long i;
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} f;
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f.d = x;
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return f.i & 0x8000000000000000;
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}
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int __signbitf(float x) {
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union fp {
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float f;
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int i;
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} f;
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f.f = x;
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return f.i & 0x80000000;
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}
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int __signbitl(long double x) {
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union fp {
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long double d;
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long long i;
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} f;
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f.d = x;
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return f.i & 0x80000000000000000000000000000000;
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} |