-fsigned-char, -funsigned-char (-qchars)
Category
Purpose
Determines whether all variables of type char are treated as signed or unsigned.
Syntax
.-unsigned----. >>- -f--+-signed------+--char---------------------------------->< +-no-unsigned-+ '-no-signed---'
Defaults
-funsigned-char or -qchars=unsigned
Usage
Regardless of the setting of this option or pragma, the type of char is still considered to be distinct from the types unsigned char and signed char for purposes of type-compatibility checking or C++ overloading.
Predefined macros
- _CHAR_SIGNED and __CHAR_SIGNED__ are defined to 1 when signed is in effect; otherwise, it is undefined.
- _CHAR_UNSIGNED and __CHAR_UNSIGNED__ are defined to 1 when unsigned is in effect; otherwise, they are undefined.
