File: macro_fn_comma_swallow.c

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (28 lines) | stat: -rw-r--r-- 458 bytes parent folder | download | duplicates (39) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
 
// Test the GNU comma swallowing extension.
// RUN: %clang_cc1 %s -E | FileCheck -strict-whitespace %s

// CHECK: 1: foo{A, }
#define X(Y) foo{A, Y}
1: X()


// CHECK: 2: fo2{A,}
#define X2(Y) fo2{A,##Y}
2: X2()

// should eat the comma.
// CHECK: 3: {foo}
#define X3(b, ...) {b, ## __VA_ARGS__}
3: X3(foo)



// PR3880
// CHECK: 4: AA BB
#define X4(...)  AA , ## __VA_ARGS__ BB
4: X4()

// PR7943
// CHECK: 5: 1
#define X5(x,...) x##,##__VA_ARGS__
5: X5(1)