Compiler Reference Guide

ISO C99

ISO C99

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 extensions.

Use the compiler option --c99 to 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.

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