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 173 of file Numeric.h.

Constructor & Destructor Documentation

Double()

Double::Double ( double _d )

inline

Definition at line 142 of file Numeric.inl.

{
    __d = _d;
}

Member Function Documentation

parse() [1/2]

double Double::parse ( const wchar_t * _number )

static

Definition at line 826 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;
    wchar_t* endptr = NULL;
    double n = wcstod(_number, &endptr);
    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 863 of file Numeric.cpp.

{
    __DCL_ASSERT(_number != NULL);
 
    if (*_number == __T('\0') || iswspace((wint_t)*_number)) {
        return _default;
    }
 
    NumericConvertException::Error error = NumericConvertException::NoError;
    wchar_t* endptr = NULL;
    double n = wcstod(_number, &endptr);
    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 891 of file Numeric.cpp.

{
    if (!_format)
        _format = _d < INT64_MIN || INT64_MAX < _d ? "%e" : "%f";
 
    __DCL_ASSERT(*_format != '\0');
 
    return ByteString::format(_format, _d);
}

toString() [1/2]

String Double::toString ( ) const

inline

Definition at line 147 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 816 of file Numeric.cpp.

{
    if (!_format)
        _format = _d < INT64_MIN || INT64_MAX < _d ? __T("%e") : __T("%f");
 
    __DCL_ASSERT(*_format != '\0');
 
    return String::format(_format, _d);
}

Member Data Documentation

__d

double Double::__d

Definition at line 176 of file Numeric.h.

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

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