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|Home > Compiler Command-line Options > --signed_chars, --unsigned_chars|
char type signed or unsigned.
char is signed, the macro
__FEATURE_SIGNED_CHAR is also defined by the compiler.
Care must be taken when mixing translation units that have been compiled with and without this option, and that share interfaces or data structures.
The ARM ABI defines
char as an unsigned byte, and this is
the interpretation used by the C++ libraries.
The default is