📅 最后修改于: 2020-12-15 04:25:08 🧑 作者: Mango
它是一个本地化库和一组特定于文化的功能，可以供程序使用，以使其更具国际可移植性。
以下是std :: locale的声明。
class locale;
class locale;
| Sr.No. | Function & description |
|---|---|
| 1 | use_facet
It is used to access facet of locale. |
| 2 | has_facet
It is used to check if locale has facet. |
| Sr.No. | Interface & description |
|---|---|
| 1 | isspace
It checks if character is a white-space. |
| 2 | isprint
It checks if character is printable. |
| 3 | iscntrl
It checks if character is a control character. |
| 4 | isupper
It checks if character is uppercase letter. |
| 5 | islower
It checks if character is lowercase letter. |
| 6 | isalpha
It checks if character is alphabetic. |
| 7 | isdigit
It checks if character is decimal digit. |
| 8 | ispunct
It checks if character is a punctuation character. |
| 9 | isxdigit
It checks if character is hexadecimal digit. |
| 10 | isalnum
It checks if character is alphanumeric. |
| 11 | isgraph
It checks if character has graphical representation. |
| 12 | isblank
It checks if character is blank. |
| Sr.No. | Standard facet & description |
|---|---|
| 1 | ctype
It is a character type facet. |
| 2 | ctype_byname
It is a character type facet. |
| 3 | codecvt
It is used to convert codeset facet. |
| 4 | codecvt_byname
It is used to convert codeset facet. |
| 5 | num_get
It is a facet to parse numeric values. |
| 6 | num_put
It is a facet to format numeric values. |
| 7 | numpunct
It is a numeric punctuation facet. |
| 8 | numpunct_byname
It is a numeric punctuation facet. |
| 9 | collate
It is a facet to compare and hash strings. |
| 10 | collate_byname
It is a facet to compare and hash strings. |
| 11 | time_get
It is a facet to parse dates and times. |
| 12 | time_get_byname
It is a facet to parse dates and times. |
| 13 | time_put
It is a facet to format dates and times. |
| 14 | time_put_byname
It is a facet to format dates and times. |
| 15 | money_get
It is a facet to parse monetary expressions. |
| 16 | money_put
It is a facet to format monetary expressions. |
| 17 | moneypunct
It is a monetary punctuation facet. |
| 18 | moneypunct_byname
It is a monetary punctuation facet. |
| 19 | messages
It is a facet to access message catalogs. |
| 20 | messages_byname
It is a facet to access message catalogs. |
| Sr.No. | Class & description |
|---|---|
| 1 | locale
It is a locale class. |