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[locale.statics]
28 Text processing library [text]
28.3 Localization library [localization]
28.3.3 Locales [locales]
28.3.3.1 Class locale [locale]
28.3.3.1.6 Static members [locale.statics]
static locale global(const locale& loc);
Effects: Sets the global locale to its argument.
Causes future calls to the constructor locale() to return a copy of the argument.
If the argument has a name, doessetlocale(LC_ALL, loc.name().c_str()); otherwise, the effect on the C locale, if any, isimplementation-defined.
Returns: The previous value of locale().
Remarks: No library function other than locale::global() affects the value returned by locale().
[Note 1:
See [c.locales] for data race considerations when setlocale is invoked.
â end note]
static const locale& classic();
The "C" locale.
Returns: A locale that implements the classic "C" locale semantics, equivalent to the value locale("C").
Remarks: This locale, its facets, and their member functions, do not change with time.