Exemplo n.º 1
0
char *__cvt( double value,
             int    ndigits,
             int    *dec,
             int    *sign,
             int    fmt,
             char   *buf )
{
    CVT_INFO    cvt;
    long_double ld;
#ifdef _LONG_DOUBLE_
    double      double_value;

    /* convert this double into a long double */
    double_value = value;
    __iFDLD( &double_value, &ld );
#else
    ld.value = value;
#endif
    if( fmt == 'F' ) {          // fcvt passes in 'F'
        cvt.flags = F_FMT + F_CVT;
        cvt.scale = 0;
    } else {                    // ecvt passes in 'G'
        cvt.flags = G_FMT + F_CVT;
        cvt.scale = 1;
    }
    cvt.ndigits = ndigits;
    cvt.expwidth = 0;
    cvt.expchar  = fmt;
    __LDcvt( &ld, &cvt, buf );
    *dec = cvt.decimal_place;
    *sign = cvt.sign;
    return( buf );
}
Exemplo n.º 2
0
FLTSUPPFUNC FAR_STRING _EFG_Format( char *buffer, my_va_list *args, _mbcs_SPECS __SLIB *specs )
{
    int         digits;
    int         fmt;
    CVT_INFO    cvt;
    double      double_value;
    long_double ld;

    cvt.expchar = specs->_character;    /* 'e', 'g' exponent character */
    digits = specs->_prec;
    fmt = specs->_character & 0x5F;
    if( fmt == 'G' ) {
        if( digits == 0 )  digits = 1;  /* 27-oct-88 */
        cvt.expchar -= 2;               /* change exponent to 'e' or 'E' */
        cvt.flags = G_FMT;
        cvt.scale = 1;
    } else if( fmt == 'E' ) {
        cvt.flags = E_FMT;
        cvt.scale = 1;
    } else {
        cvt.flags = F_FMT;
        cvt.scale = 0;
    }
    if( !(specs->_character & 0x20) ) { /* test for 'E', 'F', or 'G' */
        cvt.flags |= IN_CAPS;           /* INF/NAN needs to be uppercase */
    }
    if( specs->_flags & SPF_ALT ) {
        cvt.flags |= F_DOT;
    }
    if( (specs->_flags & SPF_LONG_DOUBLE) && !_LDisDouble() ) {
        ld = va_arg( args->v, long_double );
        cvt.flags |= LONG_DOUBLE;
    } else {
        double_value = va_arg( args->v, double );

#ifdef _LONG_DOUBLE_
        /* convert this double into a long double */
        __iFDLD( &double_value, &ld );
#else
        ld.u.value = double_value;
#endif
    }
    if( digits == -1 ) {
        digits = 6;
    }
    cvt.ndigits = digits;
    cvt.expwidth = 2;   // Only relevant for E format
    __LDcvt( &ld, &cvt, buffer + 1 );
    specs->_n1  = cvt.n1;
    specs->_nz1 = cvt.nz1;
    specs->_n2  = cvt.n2;
    specs->_nz2 = cvt.nz2;
    if( cvt.flags & IS_INF_NAN ) {
        specs->_pad_char = ' '; /* No zero padding for inf/nan! */
    }
    if( cvt.sign < 0 ) {
        buffer[specs->_n0++] = '-';
    } else if( specs->_flags & SPF_FORCE_SIGN ) {
        buffer[specs->_n0++] = '+';
    } else if( specs->_flags & SPF_BLANK ) {
        buffer[specs->_n0++] = ' ';
    }

    return( buffer );
} /* _EFG_Format() */
Exemplo n.º 3
0
_WMRTLINK void __cnvd2ld( dbl_arg src, ld_arg dst )
{
    __iFDLD( src, dst );
}