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ieee_is_nan.c 173 B
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  • #include <math.h>
    
    #ifdef NO_UNDERSCORE
    # define IEEE_IS_NAN ieee_is_nan
    #else
    # define IEEE_IS_NAN ieee_is_nan_
    #endif
    
    int IEEE_IS_NAN(double *x){
        return isnan(*x);
    }