std::basic_ios::narrow
char narrow( char_type c, char dfault ) const; | ? | ? |
|---|
转换当前特定于区域设置的字符。c和它的标准相当。结果被转换为char_type到char如果需要的话。如果不能执行转换，则函数将返回dfault...
有效呼叫std::use_facet<std::ctype<char_type>>(getloc()).narrow(c, dfault);...
参数
c | - | character to convert |
|---|---|---|
dfault | - | character to return if the conversion was unsuccessful |
返回值
字符转换为其标准等效字符，然后转换为char...dfault如果转换失败，则返回。
另见
widen | widens characters (public member function) |
|---|---|
narrow | invokes do_narrow (public member function of std::ctype) |
wctob | narrows a wide character to a single-byte narrow character, if possible (function) |
? cppreference.com在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。
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