File: macro_arg_directive.c

package info (click to toggle)
llvm-toolchain-18 1%3A18.1.8-18
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,908,340 kB
  • sloc: cpp: 6,667,937; ansic: 1,440,452; asm: 883,619; python: 230,549; objc: 76,880; f90: 74,238; lisp: 35,989; pascal: 16,571; sh: 10,229; perl: 7,459; ml: 5,047; awk: 3,523; makefile: 2,987; javascript: 2,149; xml: 892; fortran: 649; cs: 573
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));
}