clang/test/Preprocessor/macro_paste_msextensions.c

   1 // RUN: %clang_cc1 -verify -fms-extensions -Wmicrosoft %s
   2 // RUN: not %clang_cc1 -P -E -fms-extensions %s | FileCheck -strict-whitespace %s
   3
   4 // This horrible stuff should preprocess into (other than whitespace):
   5 //   int foo;
   6 //   int bar;
   7 //   int baz;
   8
   9 int foo;
  10
  11 // CHECK: int foo;
  12
  13 #define comment /##/  dead tokens live here
  14 // expected-warning@+1 {{pasting two '/' tokens}}
  15 comment This is stupidity
  16
  17 int bar;
  18
  19 // CHECK: int bar;
  20
  21 #define nested(x) int x comment cute little dead tokens...
  22
  23 // expected-warning@+1 {{pasting two '/' tokens}}
  24 nested(baz)  rise of the dead tokens
  25
  26 ;
  27
  28 // CHECK: int baz
  29 // CHECK: ;
  30
  31
  32 // rdar://8197149 - VC++ allows invalid token pastes: (##baz
  33 #define foo(x) abc(x)
  34 #define bar(y) foo(##baz(y))
  35 bar(q) // expected-error {{type specifier missing}} expected-error {{invalid preprocessing token}} expected-error {{parameter list without types}}
  36
  37 // CHECK: abc(baz(q))
  38
  39
  40 #define str(x) #x
  41 #define collapse_spaces(a, b, c, d) str(a ## - ## b ## - ## c ## d)
  42 collapse_spaces(1a, b2, 3c, d4) // expected-error 4 {{invalid preprocessing token}} expected-error {{expected function body}}
  43
  44 // CHECK: "1a-b2-3cd4"