clang/test/AST/c-casts.c

   1 // Test without serialization:
   2 // RUN: %clang_cc1 -w -ast-dump %s | FileCheck %s
   3 //
   4 // Test with serialization:
   5 // RUN: %clang_cc1 -w -emit-pch -o %t %s
   6 // RUN: %clang_cc1 -w -x c -include-pch %t -ast-dump-all /dev/null \
   7 // RUN: | sed -e "s/ <undeserialized declarations>//" -e "s/ imported//" \
   8 // RUN: | FileCheck %s
   9
  10 // The cast construction code both for implicit and c-style casts is very
  11 // different in C vs C++. This file is intended to test the C behavior.
  12
  13 // TODO: add tests covering the rest of the code in
  14 // Sema::CheckAssignmentConstraints and Sema::PrepareScalarCast
  15
  16 // CHECK-LABEL: FunctionDecl {{.*}} cast_cvr_pointer
  17 void cast_cvr_pointer(char volatile * __restrict * const * p) {
  18   char*** x;
  19   // CHECK: ImplicitCastExpr {{.*}} 'char ***' <NoOp>
  20   x = p;
  21   // CHECK: CStyleCastExpr {{.*}} 'char ***' <NoOp>
  22   x = (char***)p;
  23 }
  24
  25 // CHECK-LABEL: FunctionDecl {{.*}} cast_pointer_type
  26 void cast_pointer_type(char *p) {
  27   void *x;
  28   // CHECK: ImplicitCastExpr {{.*}} 'void *' <BitCast>
  29   x = p;
  30   // CHECK: CStyleCastExpr {{.*}} 'void *' <BitCast>
  31   x = (void*)p;
  32 }