#include <locale_facets.h>
Public Types | |
typedef CharT | char_type |
Public typedefs. | |
typedef InIter | iter_type |
Public typedefs. | |
Public Member Functions | |
num_get (size_t __refs=0) | |
Constructor performs initialization. | |
iter_type | get (iter_type in, iter_type __end, ios_base &__io, ios_base::iostate &__err, bool &__v) const |
Numeric parsing. | |
iter_type | get (iter_type in, iter_type __end, ios_base &__io, ios_base::iostate &__err, void *&__v) const |
Numeric parsing. | |
iter_type | get (iter_type in, iter_type __end, ios_base &__io, ios_base::iostate &__err, long &__v) const |
Numeric parsing. | |
iter_type | get (iter_type in, iter_type __end, ios_base &__io, ios_base::iostate &__err, unsigned short &__v) const |
Numeric parsing. | |
iter_type | get (iter_type in, iter_type __end, ios_base &__io, ios_base::iostate &__err, unsigned int &__v) const |
Numeric parsing. | |
iter_type | get (iter_type in, iter_type __end, ios_base &__io, ios_base::iostate &__err, unsigned long &__v) const |
Numeric parsing. | |
iter_type | get (iter_type in, iter_type __end, ios_base &__io, ios_base::iostate &__err, float &__v) const |
Numeric parsing. | |
iter_type | get (iter_type in, iter_type __end, ios_base &__io, ios_base::iostate &__err, double &__v) const |
Numeric parsing. | |
iter_type | get (iter_type in, iter_type __end, ios_base &__io, ios_base::iostate &__err, long double &__v) const |
Numeric parsing. | |
Static Public Attributes | |
static locale::id | id |
Numpunct facet id. | |
Protected Member Functions | |
virtual | ~num_get () |
Destructor. | |
virtual iter_type | do_get (iter_type, iter_type, ios_base &, ios_base::iostate &, bool &) const |
Numeric parsing. | |
virtual iter_type | do_get (iter_type, iter_type, ios_base &, ios_base::iostate &, long &) const |
Numeric parsing. | |
virtual iter_type | do_get (iter_type, iter_type, ios_base &, ios_base::iostate &__err, unsigned short &) const |
Numeric parsing. | |
virtual iter_type | do_get (iter_type, iter_type, ios_base &, ios_base::iostate &__err, unsigned int &) const |
Numeric parsing. | |
virtual iter_type | do_get (iter_type, iter_type, ios_base &, ios_base::iostate &__err, unsigned long &) const |
Numeric parsing. | |
virtual iter_type | do_get (iter_type, iter_type, ios_base &, ios_base::iostate &__err, float &) const |
Numeric parsing. | |
virtual iter_type | do_get (iter_type, iter_type, ios_base &, ios_base::iostate &__err, double &) const |
Numeric parsing. | |
virtual iter_type | do_get (iter_type, iter_type, ios_base &, ios_base::iostate &__err, long double &) const |
Numeric parsing. | |
virtual iter_type | do_get (iter_type, iter_type, ios_base &, ios_base::iostate &__err, void *&) const |
Numeric parsing. |
This facet encapsulates the code to parse and return a number from a string. It is used by the istream numeric extraction operators.
The num_get template uses protected virtual functions to provide the actual results. The public accessors forward the call to the virtual functions. These virtual functions are hooks for developers to implement the behavior they require from the num_get facet.
Definition at line 1925 of file locale_facets.h.
typedef CharT std::num_get< CharT, InIter >::char_type |
typedef InIter std::num_get< CharT, InIter >::iter_type |
std::num_get< CharT, InIter >::num_get | ( | size_t | __refs = 0 |
) | [inline, explicit] |
Constructor performs initialization.
This is the constructor provided by the standard.
refs | Passed to the base facet class. |
Definition at line 1946 of file locale_facets.h.
virtual std::num_get< CharT, InIter >::~num_get | ( | ) | [inline, protected, virtual] |
iter_type std::num_get< CharT, InIter >::get | ( | iter_type | in, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
bool & | __v | |||
) | const [inline] |
Numeric parsing.
Parses the input stream into the bool v. It does so by calling num_put::do_put().
If ios_base::boolalpha is set, attempts to read ctype<CharT>::truename() or ctype<CharT>::falsename(). Sets v to true or false if successful. Sets err to ios_base::failbit if reading the string fails. Sets err to ios_base::eofbit if the stream is emptied.
If ios_base::boolalpha is not set, proceeds as with reading a long, except if the value is 1, sets v to true, if the value is 0, sets v to false, and otherwise set err to ios_base::failbit.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 1972 of file locale_facets.h.
iter_type std::num_get< CharT, InIter >::get | ( | iter_type | in, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
long & | __v | |||
) | const [inline] |
Numeric parsing.
Parses the input stream into the integral variable v. It does so by calling num_put::do_put().
Parsing is affected by the flag settings in io.
The basic parse is affected by the value of io.flags() & ios_base::basefield. If equal to ios_base::oct, parses like the scanf o specifier. Else if equal to ios_base::hex, parses like X specifier. Else if basefield equal to 0, parses like the i specifier. Otherwise, parses like d for signed and u for unsigned types. The matching type length modifier is also used.
Digit grouping is intrepreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.
If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 2008 of file locale_facets.h.
iter_type std::num_get< CharT, InIter >::get | ( | iter_type | in, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
unsigned short & | __v | |||
) | const [inline] |
Numeric parsing.
Parses the input stream into the integral variable v. It does so by calling num_put::do_put().
Parsing is affected by the flag settings in io.
The basic parse is affected by the value of io.flags() & ios_base::basefield. If equal to ios_base::oct, parses like the scanf o specifier. Else if equal to ios_base::hex, parses like X specifier. Else if basefield equal to 0, parses like the i specifier. Otherwise, parses like d for signed and u for unsigned types. The matching type length modifier is also used.
Digit grouping is intrepreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.
If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 2013 of file locale_facets.h.
iter_type std::num_get< CharT, InIter >::get | ( | iter_type | in, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
unsigned int & | __v | |||
) | const [inline] |
Numeric parsing.
Parses the input stream into the integral variable v. It does so by calling num_put::do_put().
Parsing is affected by the flag settings in io.
The basic parse is affected by the value of io.flags() & ios_base::basefield. If equal to ios_base::oct, parses like the scanf o specifier. Else if equal to ios_base::hex, parses like X specifier. Else if basefield equal to 0, parses like the i specifier. Otherwise, parses like d for signed and u for unsigned types. The matching type length modifier is also used.
Digit grouping is intrepreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.
If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 2018 of file locale_facets.h.
iter_type std::num_get< CharT, InIter >::get | ( | iter_type | in, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
unsigned long & | __v | |||
) | const [inline] |
Numeric parsing.
Parses the input stream into the integral variable v. It does so by calling num_put::do_put().
Parsing is affected by the flag settings in io.
The basic parse is affected by the value of io.flags() & ios_base::basefield. If equal to ios_base::oct, parses like the scanf o specifier. Else if equal to ios_base::hex, parses like X specifier. Else if basefield equal to 0, parses like the i specifier. Otherwise, parses like d for signed and u for unsigned types. The matching type length modifier is also used.
Digit grouping is intrepreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.
If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 2023 of file locale_facets.h.
iter_type std::num_get< CharT, InIter >::get | ( | iter_type | in, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
float & | __v | |||
) | const [inline] |
Numeric parsing.
Parses the input stream into the integral variable v. It does so by calling num_put::do_put().
The input characters are parsed like the scanf g specifier. The matching type length modifier is also used.
The decimal point character used is numpunct::decimal_point(). Digit grouping is intrepreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.
If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 2067 of file locale_facets.h.
iter_type std::num_get< CharT, InIter >::get | ( | iter_type | in, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
double & | __v | |||
) | const [inline] |
Numeric parsing.
Parses the input stream into the integral variable v. It does so by calling num_put::do_put().
The input characters are parsed like the scanf g specifier. The matching type length modifier is also used.
The decimal point character used is numpunct::decimal_point(). Digit grouping is intrepreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.
If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 2072 of file locale_facets.h.
iter_type std::num_get< CharT, InIter >::get | ( | iter_type | in, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
long double & | __v | |||
) | const [inline] |
Numeric parsing.
Parses the input stream into the integral variable v. It does so by calling num_put::do_put().
The input characters are parsed like the scanf g specifier. The matching type length modifier is also used.
The decimal point character used is numpunct::decimal_point(). Digit grouping is intrepreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.
If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 2077 of file locale_facets.h.
iter_type std::num_get< CharT, InIter >::get | ( | iter_type | in, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
void *& | __v | |||
) | const [inline] |
Numeric parsing.
Parses the input stream into the pointer variable v. It does so by calling num_put::do_put().
The input characters are parsed like the scanf p specifier.
Digit grouping is intrepreted according to numpunct::grouping() and numpunct::thousands_sep(). If the pattern of digit groups isn't consistent, sets err to ios_base::failbit.
Note that the digit grouping effect for pointers is a bit ambiguous in the standard and shouldn't be relied on. See DR 344.
If parsing the string yields a valid value for v, v is set. Otherwise, sets err to ios_base::failbit and leaves v unaltered. Sets err to ios_base::eofbit if the stream is emptied.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 2109 of file locale_facets.h.
InIter std::num_get< CharT, InIter >::do_get | ( | iter_type | __beg, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
bool & | __v | |||
) | const [inline, protected, virtual] |
Numeric parsing.
Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 632 of file locale_facets.tcc.
References std::ios_base::boolalpha, std::ios_base::eofbit, and std::ios_base::flags().
InIter std::num_get< CharT, InIter >::do_get | ( | iter_type | __beg, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
long & | __v | |||
) | const [inline, protected, virtual] |
Numeric parsing.
Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 692 of file locale_facets.tcc.
InIter std::num_get< CharT, InIter >::do_get | ( | iter_type | __beg, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
unsigned short & | __v | |||
) | const [inline, protected, virtual] |
Numeric parsing.
Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 699 of file locale_facets.tcc.
InIter std::num_get< CharT, InIter >::do_get | ( | iter_type | __beg, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
unsigned int & | __v | |||
) | const [inline, protected, virtual] |
Numeric parsing.
Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 706 of file locale_facets.tcc.
InIter std::num_get< CharT, InIter >::do_get | ( | iter_type | __beg, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
unsigned long & | __v | |||
) | const [inline, protected, virtual] |
Numeric parsing.
Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 713 of file locale_facets.tcc.
InIter std::num_get< CharT, InIter >::do_get | ( | iter_type | __beg, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
float & | __v | |||
) | const [inline, protected, virtual] |
Numeric parsing.
Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 736 of file locale_facets.tcc.
References std::basic_string< CharT, Traits, Alloc >::c_str(), and std::basic_string< CharT, Traits, Alloc >::reserve().
InIter std::num_get< CharT, InIter >::do_get | ( | iter_type | __beg, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
double & | __v | |||
) | const [inline, protected, virtual] |
Numeric parsing.
Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 749 of file locale_facets.tcc.
References std::basic_string< CharT, Traits, Alloc >::c_str(), and std::basic_string< CharT, Traits, Alloc >::reserve().
InIter std::num_get< CharT, InIter >::do_get | ( | iter_type | __beg, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
long double & | __v | |||
) | const [inline, protected, virtual] |
Numeric parsing.
Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 762 of file locale_facets.tcc.
References std::basic_string< CharT, Traits, Alloc >::c_str(), and std::basic_string< CharT, Traits, Alloc >::reserve().
InIter std::num_get< CharT, InIter >::do_get | ( | iter_type | __beg, | |
iter_type | __end, | |||
ios_base & | __io, | |||
ios_base::iostate & | __err, | |||
void *& | __v | |||
) | const [inline, protected, virtual] |
Numeric parsing.
Parses the input stream into the variable v. This function is a hook for derived classes to change the value returned.
in | Start of input stream. | |
end | End of input stream. | |
io | Source of locale and flags. | |
err | Error flags to set. | |
v | Value to format and insert. |
Definition at line 775 of file locale_facets.tcc.
References std::ios_base::basefield, std::ios_base::flags(), and std::ios_base::hex.
locale::id std::num_get< CharT, InIter >::id [inline, static] |