Double Class Reference

#include <Numeric.h>

Public Member Functions
	Double (double _d)
String	toString () const

Static Public Member Functions
static String	toString (double _d, const wchar_t *_format)
static double	parse (const wchar_t *_number) __DCL_THROWS1(NumericConvertException *)
static double	parse (const wchar_t *_number, double _default)
static ByteString	toByteString (double _f, const char *_format)

Public Attributes
double	__d

Detailed Description

Definition at line 191 of file Numeric.h.

Constructor & Destructor Documentation

Double()

Double::Double ( double _d )

inline

Definition at line 148 of file Numeric.inl.

{
    __d = _d;
}

Member Function Documentation

parse() [1/2]

double Double::parse ( const wchar_t * _number )

static

Definition at line 846 of file Numeric.cpp.

{
    __DCL_ASSERT(_number != NULL);
 
    if (*_number == __T('\0') || iswspace((wint_t)*_number)) {
        throw new NumericConvertException(_number, 0, 0);
    }
 
    NumericConvertException::Error error = NumericConvertException::NoError;
    errno = 0;
    wchar_t* endptr = NULL;
    double n = wcstod(_number, &endptr);
    if (errno == ERANGE) {
        if (+HUGE_VAL == n || -HUGE_VAL == n) {
            error = NumericConvertException::Overflow;
        }
        else if (!(DBL_MIN < n)) {
            error = NumericConvertException::Underflow;
        }
    }
 
    if (NumericConvertException::NoError != error) {
        throw new NumericConvertException(
            error,
            _number,
            0
        );
    }
 
    if ((endptr && *endptr != '\0') || errno == EINVAL) {
        throw new NumericConvertException(
            _number,
            0,
            endptr ? (endptr - _number) : 0
        );
    }
 
    return (double) n;
}

parse() [2/2]

double Double::parse ( const wchar_t * _number, double _default )

static

Definition at line 887 of file Numeric.cpp.

{
    __DCL_ASSERT(_number != NULL);
 
    if (*_number == __T('\0') || iswspace((wint_t)*_number)) {
        return _default;
    }
 
    NumericConvertException::Error error = NumericConvertException::NoError;
    errno = 0;
    wchar_t* endptr = NULL;
    double n = wcstod(_number, &endptr);
    if (errno == ERANGE) {
        if (+HUGE_VAL == n || -HUGE_VAL == n) {
            error = NumericConvertException::Overflow;
        }
        else if (!(DBL_MIN < n)) {
            error = NumericConvertException::Underflow;
        }
    }
 
    if (NumericConvertException::NoError != error) {
        return _default;
    }
 
    if ((endptr && *endptr != '\0') || errno == EINVAL) {
        return _default;
    }
 
    return (double) n;
}

toByteString()

ByteString Double::toByteString ( double _f, const char * _format )

static

Definition at line 919 of file Numeric.cpp.

{
    if (!_format)
        _format = "%.16g";
 
    __DCL_ASSERT(*_format != '\0');
 
    return ByteString::format(_format, _d);
}

toString() [1/2]

String Double::toString ( ) const

inline

Definition at line 153 of file Numeric.inl.

{
    return Double::toString(__d, NULL);
}

toString() [2/2]

String Double::toString ( double _d, const wchar_t * _format )

static

Definition at line 836 of file Numeric.cpp.

{
    if (!_format)
        _format = __T("%.16g");
 
    __DCL_ASSERT(*_format != '\0');
 
    return String::format(_format, _d);
}

Member Data Documentation

__d

double Double::__d

Definition at line 194 of file Numeric.h.

---

The documentation for this class was generated from the following files:

• Numeric.h
• Numeric.inl
• Numeric.cpp