char2uni.3x

Langue: en

Autres versions - même langue

Version: AfterStep v.2.2.9 (ubuntu - 24/10/10)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

char2uni - handling on Unicode, UTF-8 and localized 8 bit encodings libAfterImage/CHAR_SIZE

NAMECHAR_SIZE

- Convenient macro so we can transparently determine the number of bytes that character spans. It assumes UTF-8 encoding when I18N is enabled.

SOURCE

 /* size of the UTF-8 encoded character is based on value of 
  * the first byte : */
 #define UTF8_CHAR_SIZE(c)   ((((c)&0xC0)==0xC0)? \
                              (((c)&0x20)? \
                              (((c)&0x10)? \
                              (((c)&0x08)? \
                              (((c)&0x04)?6:5):4):3):2):1)
 #ifdef WIN32
 #define UNICODE_CHAR_SIZE(c)    sizeof(UNICODE_CHAR)
 #endif
 #define CHAR_SIZE(c)            1