File: macro_arg_directive.c

package info (click to toggle)
llvm-toolchain-3.8 1%3A3.8.1-24
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 379,280 kB
  • ctags: 388,501
  • sloc: cpp: 2,309,705; ansic: 477,070; objc: 100,918; asm: 97,974; python: 95,911; sh: 18,634; makefile: 7,294; perl: 5,584; ml: 5,460; pascal: 4,661; lisp: 2,548; xml: 686; cs: 350; php: 212; csh: 117
file content (32 lines) | stat: -rw-r--r-- 801 bytes parent folder | download | duplicates (12)
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
29
30
31
32
// RUN: %clang_cc1 %s -fsyntax-only -verify

#define a(x) enum { x }
a(n =
#undef a
#define a 5
  a);
_Static_assert(n == 5, "");

#define M(A)
M(
#pragma pack(pop) // expected-error {{embedding a #pragma directive within macro arguments is not supported}}
)

// header1.h
void fail(const char *);
#define MUNCH(...) \
 ({ int result = 0; __VA_ARGS__; if (!result) { fail(#__VA_ARGS__); }; result })

static inline int f(int k) {
  return MUNCH( // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{returning 'void'}}
    if (k < 3)
      result = 24;
    else if (k > 4)
      result = k - 4;
}

#include "macro_arg_directive.h" // expected-error {{embedding a #include directive within macro arguments is not supported}}

int g(int k) {
  return f(k) + f(k-1));
}