Каталог требований LSB Core 3.1
Требования для функции '__ctype_b_loc'
| Standard | ID | Description |
| LSB | __ctype_b_loc.01 | The __ctype_b_loc() function shall return a pointer into an array of characters in the current locale that contains characteristics for each character in the current character set. |
| LSB | __ctype_b_loc.02 | The array shall contain a total of 384 characters, and can be indexed with any signed or unsigned char (i.e. with an index value between -128 and 255). |
| LSB | __ctype_b_loc.03 | If the application is multithreaded, the array shall be local to the current thread. |