File: extension-warning.c

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (18 lines) | stat: -rw-r--r-- 579 bytes parent folder | download | duplicates (13)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
// RUN: %clang_cc1 -fsyntax-only -verify -pedantic %s

// The preprocessor shouldn't warn about extensions within macro bodies that
// aren't expanded.
#define TY typeof
#define TY1 typeof(1)

// But we should warn here
TY1 x; // expected-warning {{extension}}
TY(1) x; // FIXME: And we should warn here

// Note: this warning intentionally doesn't trigger on keywords like
// __attribute; the standard allows implementation-defined extensions
// prefixed with "__".
// Current list of keywords this can trigger on:
// inline, restrict, asm, typeof, _asm

void whatever(void) {}