f128_eq.c File Reference

#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"

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Functions
bool	f128_eq (float128_t a, float128_t b)

Function Documentation

f128_eq()

bool f128_eq	(	float128_t	a,
		float128_t	b )

Definition at line 44 of file f128_eq.c.

{
    union ui128_f128 uA;
    uint_fast64_t uiA64, uiA0;
    union ui128_f128 uB;
    uint_fast64_t uiB64, uiB0;
 
    uA.f = a;
    uiA64 = uA.ui.v64;
    uiA0  = uA.ui.v0;
    uB.f = b;
    uiB64 = uB.ui.v64;
    uiB0  = uB.ui.v0;
    if ( isNaNF128UI( uiA64, uiA0 ) || isNaNF128UI( uiB64, uiB0 ) ) {
        if (
               softfloat_isSigNaNF128UI( uiA64, uiA0 )
            || softfloat_isSigNaNF128UI( uiB64, uiB0 )
        ) {
            softfloat_raiseFlags( softfloat_flag_invalid );
        }
        return false;
    }
    return
           (uiA0 == uiB0)
        && (   (uiA64 == uiB64)
            || (! uiA0 && ! ((uiA64 | uiB64) & UINT64_C( 0x7FFFFFFFFFFFFFFF )))
           );
 
}

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