clang/test/Modules/stddef.c

   1 // RUN: rm -rf %t
   2 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fbuiltin-headers-in-system-modules -fmodules-cache-path=%t -I%S/Inputs/StdDef %s -verify=builtin-headers-in-system-modules -fno-modules-error-recovery
   3 // RUN: rm -rf %t
   4 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -I%S/Inputs/StdDef %s -verify=no-builtin-headers-in-system-modules -fno-modules-error-recovery
   5
   6 #include "ptrdiff_t.h"
   7
   8 ptrdiff_t pdt;
   9
  10 // size_t is declared in both size_t.h and __stddef_size_t.h. If
  11 // -fbuiltin-headers-in-system-modules is set, then __stddef_size_t.h is a
  12 // non-modular header that will be transitively pulled in the StdDef test module
  13 // by include_again.h. Otherwise it will be in the _Builtin_stddef module. In
  14 // any case it's not defined which module will win as the expected provider of
  15 // size_t. For the purposes of this test it doesn't matter which of the two
  16 // providing headers get reported.
  17 size_t st; // builtin-headers-in-system-modules-error-re {{missing '#include "{{size_t|include_again}}.h"'; 'size_t' must be declared before it is used}} \
  18               no-builtin-headers-in-system-modules-error-re {{missing '#include "{{size_t|__stddef_size_t}}.h"'; 'size_t' must be declared before it is used}}
  19 // builtin-headers-in-system-modules-note@size_t.h:* 0+ {{here}} \
  20    no-builtin-headers-in-system-modules-note@size_t.h:* 0+ {{here}}
  21 // builtin-headers-in-system-modules-note@__stddef_size_t.h:* 0+ {{here}} \
  22    no-builtin-headers-in-system-modules-note@__stddef_size_t.h:* 0+ {{here}}
  23
  24 #include "include_again.h"
  25 // Includes <stddef.h> which includes <__stddef_size_t.h>.
  26
  27 size_t st2;
  28
  29 #include "size_t.h"
  30 // Redeclares size_t when -fbuiltin-headers-in-system-modules is not passed, but
  31 // the type merger should figure it out.
  32
  33 size_t st3;