GCC Extensions

The CodeWarrior compiler accepts many of the extensions to the C language that the GCC (GNU Compiler Collection) tools allow. Source code that uses these extensions does not conform to the ISO/IEC 9899-1990 C ("C90") standard.

• Controlling GCC Extensions
  
• Initializing Automatic Arrays and Structures
  
• sizeof() Operator
  
• Statements in Expressions
  
• Redefining Macros
  
• typeof() Operator
  
• Void and Function Pointer Arithmetic
  
• __builtin_constant_p() Operator
  
• Forward Declarations of Static Arrays
  
• Omitted Operands in Conditional Expressions
  
• __builtin_expect() Operator
  
• Void Return Statements
  
• Minimum and Maximum Operators
  
• Local Labels