#include <locale_facets.h>
Inheritance diagram for std::num_put< CharT, OutIter >:
Public Types | |
| typedef CharT | char_type |
| Public typedefs. | |
Public Member Functions | |
| num_put (size_t __refs=0) | |
| Constructor performs initialization. | |
| iter_type | put (iter_type s, ios_base &__f, char_type __fill, bool __v) const |
| Numeric formatting. | |
| iter_type | put (iter_type s, ios_base &__f, char_type __fill, long __v) const |
| Numeric formatting. | |
| iter_type | put (iter_type s, ios_base &__f, char_type __fill, double __v) const |
| Numeric formatting. | |
| iter_type | put (iter_type s, ios_base &__f, char_type __fill, const void *__v) const |
| Numeric formatting. | |
Static Public Attributes | |
| static locale::id | id |
| Numpunct facet id. | |
Protected Member Functions | |
| virtual | ~num_put () |
| Destructor. | |
| virtual iter_type | do_put (iter_type, ios_base &, char_type __fill, bool __v) const |
| Numeric formatting. | |
This facet encapsulates the code to convert a number to a string. It is used by the ostream numeric insertion operators.
The num_put 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_put facet.
Definition at line 2204 of file locale_facets.h.
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Public typedefs.
Definition at line 2210 of file locale_facets.h. |
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Constructor performs initialization. This is the constructor provided by the standard.
Definition at line 2225 of file locale_facets.h. |
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Destructor.
Definition at line 2404 of file locale_facets.h. |
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Numeric formatting. These functions do the work of formatting numeric values and inserting them into a stream. This function is a hook for derived classes to change the value returned.
Definition at line 1149 of file locale_facets.tcc. References std::ios_base::boolalpha, std::ios_base::flags(), and std::ios_base::width(). Referenced by std::num_put< CharT, ostreambuf_iterator< CharT, Traits > >::put(). |
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Numeric formatting. Formats the pointer value v and inserts it into a stream. It does so by calling num_put::do_put(). This function formats v as an unsigned long with ios_base::hex and ios_base::showbase set.
Definition at line 2373 of file locale_facets.h. |
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Numeric formatting. Formats the floating point value v and inserts it into a stream. It does so by calling num_put::do_put(). Formatting is affected by the flag settings in io. The basic format is affected by the value of io.flags() & ios_base::floatfield. If equal to ios_base::fixed, formats like the printf f specifier. Else if equal to ios_base::scientific, formats like e or E with ios_base::uppercase unset or set respectively. Otherwise, formats like g or G depending on uppercase. Note that if both fixed and scientific are set, the effect will also be like g or G. The output precision is given by io.precision(). This precision is capped at numeric_limits::digits10 + 2 (different for double and long double). The default precision is 6. If ios_base::showpos is set, '+' is output before positive values. If ios_base::showpoint is set, a decimal point will always be output. Thousands separators are inserted according to numpunct::grouping() and numpunct::thousands_sep(). The decimal point character used is numpunct::decimal_point(). If io.width() is non-zero, enough fill characters are inserted to make the result at least that wide. If (io.flags() & ios_base::adjustfield) == ios_base::left, result is padded at the end. If ios_base::internal, then padding occurs immediately after either a '+' or '-' or after '0x' or '0X'. Otherwise, padding occurs at the beginning.
Definition at line 2348 of file locale_facets.h. |
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Numeric formatting. Formats the integral value v and inserts it into a stream. It does so by calling num_put::do_put(). Formatting is affected by the flag settings in io. The basic format is affected by the value of io.flags() & ios_base::basefield. If equal to ios_base::oct, formats like the printf o specifier. Else if equal to ios_base::hex, formats like x or X with ios_base::uppercase unset or set respectively. Otherwise, formats like d, ld, lld for signed and u, lu, llu for unsigned values. Note that if both oct and hex are set, neither will take effect. If ios_base::showpos is set, '+' is output before positive values. If ios_base::showbase is set, '0' precedes octal values (except 0) and '0[xX]' precedes hex values. Thousands separators are inserted according to numpunct::grouping() and numpunct::thousands_sep(). The decimal point character used is numpunct::decimal_point(). If io.width() is non-zero, enough fill characters are inserted to make the result at least that wide. If (io.flags() & ios_base::adjustfield) == ios_base::left, result is padded at the end. If ios_base::internal, then padding occurs immediately after either a '+' or '-' or after '0x' or '0X'. Otherwise, padding occurs at the beginning.
Definition at line 2285 of file locale_facets.h. |
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Numeric formatting. Formats the boolean v and inserts it into a stream. It does so by calling num_put::do_put(). If ios_base::boolalpha is set, writes ctype<CharT>::truename() or ctype<CharT>::falsename(). Otherwise formats v as an int.
Definition at line 2243 of file locale_facets.h. |
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Numpunct facet id.
Definition at line 2449 of file locale_facets.h. |
1.4.2