11 hours ago
- C function definitions can exploit GCC glitches like unnamed parameters and multiple void arguments to bypass modern compiler errors.
- Operator precedence tricks involve empty attributes, typedef rearrangements, and the dual use of && as a label address operator and Boolean AND.
- Goto statements in C can leverage GNU extensions for computed jumps and comma operators to obscure control flow.
- Counting and addition examples demonstrate undefined behavior with unspecified evaluation order of function parameters and zero-sized union types.
- Zero-sized unions allow pointer arithmetic that disregards numerical operands, differing from behavior with void pointers.