void _STLP_CALL __get_floor_digits(__iostring &out, _STLP_LONG_DOUBLE __x) {
#ifdef USE_SPRINTF_INSTEAD
char cvtbuf[128];
# ifndef _STLP_NO_LONG_DOUBLE
# ifndef N_PLAT_NLM
snprintf(ARRAY_AND_SIZE(cvtbuf), "%Lf", __x); // check for 1234.56!
# else
sprintf(cvtbuf, "%Lf", __x); // check for 1234.56!
# endif
# else
snprintf(ARRAY_AND_SIZE(cvtbuf), "%f", __x); // check for 1234.56!
# endif
char *p = strchr( cvtbuf, '.' );
if ( p == 0 ) {
out.append( cvtbuf );
} else {
out.append( cvtbuf, p );
}
#else
char cvtbuf[NDIG+2];
char * bp;
int decpt, sign;
#ifndef _STLP_NO_LONG_DOUBLE
bp = _Stl_qfcvtR(__x, 0, &decpt, &sign, cvtbuf);
#else
bp = _Stl_fcvtR(__x, 0, &decpt, &sign, cvtbuf);
#endif
if (sign) {
out += '-';
}
out.append(bp, bp + decpt);
#endif // USE_PRINTF_INSTEAD
}
char* _STLP_CALL
__write_float(char* buf, ios_base::fmtflags flags, int precision,
double x)
{
# ifdef USE_SPRINTF_INSTEAD
char fmtbuf[32];
fill_fmtbuf(fmtbuf, flags, 0);
sprintf(buf, fmtbuf, precision, x);
// we should be able to return buf + sprintf(), but we do not trust'em...
return buf + strlen(buf);
# else
char cvtbuf[NDIG+2];
char * bp;
int decpt, sign;
switch (flags & ios_base::floatfield) {
case ios_base::fixed:
bp = _Stl_fcvtR(x, (min) (precision, MAXFCVT), &decpt, &sign, cvtbuf);
break;
case ios_base::scientific :
bp = _Stl_ecvtR(x, (min) (precision + 1, MAXECVT), &decpt, &sign, cvtbuf);
break;
default :
bp = _Stl_ecvtR(x, (min) (precision, MAXECVT), &decpt, &sign, cvtbuf);
break;
}
__format_float(buf, bp, decpt, sign, x, flags, precision, false);
return buf + strlen(buf);
# endif
}
char* __STL_CALL
__write_float(char* buf, ios_base::fmtflags flags, int precision,
double x)
{
char cvtbuf[NDIG+2];
char * bp;
int decpt, sign;
if (flags & ios_base::fixed)
bp = _Stl_fcvtR(x, min(precision, MAXFCVT), &decpt, &sign, cvtbuf);
else
bp = _Stl_ecvtR(x, min(precision + 1, MAXECVT), &decpt, &sign, cvtbuf);
__format_float(buf, bp, decpt, sign, x, flags, precision, false);
return buf + strlen(buf);
}
size_t _STLP_CALL
__write_float(__iostring &buf, ios_base::fmtflags flags, int precision,
double x) {
#ifdef USE_SPRINTF_INSTEAD
/* If we want 'abitrary' precision, we should use 'abitrary' buffer size
* below. - ptr
*/
char static_buf[128];
// char *static_buf = new char [128+precision];
char fmtbuf[32];
fill_fmtbuf(fmtbuf, flags, 0);
// snprintf(static_buf, 128+precision, fmtbuf, precision, x);
# ifndef N_PLAT_NLM
snprintf(ARRAY_AND_SIZE(static_buf), fmtbuf, precision, x);
# else
sprintf(static_buf, fmtbuf, precision, x);
# endif
buf = static_buf;
// delete [] static_buf;
return find_if(buf.begin(), buf.end(), GroupPos()) - buf.begin();
#else
char cvtbuf[NDIG+2];
char * bp;
int decpt, sign;
switch (flags & ios_base::floatfield) {
case ios_base::fixed:
bp = _Stl_fcvtR(x, (min) (precision, MAXFCVT), &decpt, &sign, cvtbuf);
break;
case ios_base::scientific :
bp = _Stl_ecvtR(x, (min) (precision + 1, MAXECVT), &decpt, &sign, cvtbuf);
break;
default :
bp = _Stl_ecvtR(x, (min) (precision, MAXECVT), &decpt, &sign, cvtbuf);
break;
}
return __format_float(buf, bp, decpt, sign, x, flags, precision, false);
#endif
}
