The compiler compiles C as defined by the 1999 C standard and addenda:
ISO/IEC 9899:1999. The 1999 International Standard for C.
The compiler also supports several extensions to ISO C99. See Language extensions and language compliance for more information.
Throughout this document, the term:
- C99
Means ISO C99, together with the ARM and GNU extensions.
Use the compiler option
--c99to compile C99 code.- Strict C99
Means C as defined by the 1999 C standard and addenda.
- Standard C
Means C90 or C99 as appropriate.
- C
Means any of C90, strict C90, C99, and Standard C.
See also
PDF version