strtopQ.c File Reference

#include "gdtoaimp.h"

Include dependency graph for strtopQ.c:

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Functions
int	strtopQ (CONST char *s, char **sp, void *V)

Function Documentation

strtopQ()

int strtopQ	(	CONST char *	s,
		char **	sp,
		void *	V
	)

Definition at line 58 of file strtopQ.c.

{
    static FPI fpi = {113, 1 - 16383 - 113 + 1, 32766 - 16383 - 113 + 1, 1, SI};
    ULong bits[4];
    Long exp;
    int k;
    ULong* L = (ULong*)V;

    k = strtodg(s, sp, &fpi, &exp, bits);
    switch(k & STRTOG_Retmask)
    {
        case STRTOG_NoNumber:
        case STRTOG_Zero:
            L[0] = L[1] = L[2] = L[3] = 0;
            break;

        case STRTOG_Normal:
        case STRTOG_NaNbits:
            L[_3] = bits[0];
            L[_2] = bits[1];
            L[_1] = bits[2];
            L[_0] = (bits[3] & (unsigned)~0x10000) | (unsigned)((exp + 0x3fff + 112) << 16);
            break;

        case STRTOG_Denormal:
            L[_3] = bits[0];
            L[_2] = bits[1];
            L[_1] = bits[2];
            L[_0] = bits[3];
            break;

        case STRTOG_Infinite:
            L[_0] = 0x7fff0000;
            L[_1] = L[_2] = L[_3] = 0;
            break;

        case STRTOG_NaN:
            L[0] = ld_QNAN0;
            L[1] = ld_QNAN1;
            L[2] = ld_QNAN2;
            L[3] = ld_QNAN3;
    }
    if(k & STRTOG_Neg)
    {
        {
            L[_0] |= 0x80000000L;
        }
    }
    return k;
}

References Long, SI, strtodg(), STRTOG_Denormal, STRTOG_Infinite, STRTOG_NaN, STRTOG_NaNbits, STRTOG_Neg, STRTOG_NoNumber, STRTOG_Normal, STRTOG_Retmask, and STRTOG_Zero.