clang/test/Preprocessor/macro_disable.c

   1 // RUN: %clang_cc1 %s -E | FileCheck -strict-whitespace %s
   2 // Check for C99 6.10.3.4p2.
   3
   4 #define f(a) f(x * (a))
   5 #define x 2
   6 #define z z[0]
   7 f(f(z));
   8 // CHECK: f(2 * (f(2 * (z[0]))));
   9
  10
  11
  12 #define A A B C
  13 #define B B C A
  14 #define C C A B
  15 A
  16 // CHECK: A B C A B A C A B C A
  17
  18
  19 // PR1820
  20 #define i(x) h(x
  21 #define h(x) x(void)
  22 extern int i(i));
  23 // CHECK: int i(void)
  24
  25
  26 #define M_0(x) M_ ## x
  27 #define M_1(x) x + M_0(0)
  28 #define M_2(x) x + M_1(1)
  29 #define M_3(x) x + M_2(2)
  30 #define M_4(x) x + M_3(3)
  31 #define M_5(x) x + M_4(4)
  32
  33 a: M_0(1)(2)(3)(4)(5);
  34 b: M_0(5)(4)(3)(2)(1);
  35
  36 // CHECK: a: 2 + M_0(3)(4)(5);
  37 // CHECK: b: 4 + 4 + 3 + 2 + 1 + M_0(3)(2)(1);
  38
  39 #define n(v) v
  40 #define l m
  41 #define m l a
  42 c: n(m) X
  43 // CHECK: c: m a X