Semantic Extensions (Using the GNU Compiler Collection (GCC)) (original) (raw)

Previous: Other Extensions to C Syntax, Up: Extensions to the C Language Family [Contents][Index]

6.13 Extensions to C Semantics ¶

GNU C defines useful behavior for some constructs that are not allowed or well-defined in standard C.

• Prototypes and Old-Style Function Definitions
• Arithmetic on void- and Function-Pointers
• Pointer Arguments in Variadic Functions
• Pointers to Arrays with Qualifiers Work as Expected
• Const and Volatile Functions