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# std::wctrans

From cppreference.com
< cpp‎ | string‎ | wide

Defined in header `<cwctype>` |  |
std::wctrans_t wctrans( const char* str ); |  |

Constructs a value of type std::wctrans_t that describes a LC_CTYPE category of wide character mapping. It may be one of the standard mappings, or a locale-specific mapping, such as `"tojhira"` or `"tojkana"`.

### [edit] Parameters

str | - | C string holding the name of the desired mapping. The following values of `str` are supported in all C locales:
Value of `str` | Effect
`"toupper"` | identifies the mapping used by towupper
`"tolower"` | identifies the mapping used by towlower

### [edit] Return value

std::wctrans_t object suitable for use with std::towctrans to map wide characters according to the named mapping of the current C locale or zero if `str` does not name a mapping supported by the current C locale.

### [edit] See also

towctrans | performs character mapping according to the specified LC_CTYPE mapping category (function) [edit]
C documentation for wctrans

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