File: macro_arg_directive.c

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (32 lines) | stat: -rw-r--r-- 920 bytes parent folder | download | duplicates (23) 
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( // expected-note {{expansion of macro 'M' requested here}}
#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'}} expected-note {{expansion of macro 'MUNCH' requested here}}
    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));
}