clang/test/Sema/noescape.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 void escapefunc(int *);
   4 void noescapefunc(__attribute__((noescape)) int *);
   5 void (*escapefuncptr)(int *);
   6 void (*noescapefuncptr)(__attribute__((noescape)) int *);
   7
   8 void func_ne(__attribute__((noescape)) int *, int *);
   9 void func_en(int *, __attribute__((noescape)) int *);
  10
  11 void (*funcptr_ee)(int *, int *);
  12 void (*funcptr_nn)(__attribute__((noescape)) int *, __attribute__((noescape)) int *);
  13
  14 void test0(int c) {
  15   escapefuncptr = &escapefunc;
  16   escapefuncptr = &noescapefunc;
  17   noescapefuncptr = &escapefunc; // expected-warning {{incompatible function pointer types assigning to 'void (*)(__attribute__((noescape)) int *)' from 'void (*)(int *)'}}
  18   noescapefuncptr = &noescapefunc;
  19
  20   escapefuncptr = c ? &escapefunc : &noescapefunc;
  21   noescapefuncptr = c ? &escapefunc : &noescapefunc; // expected-warning {{incompatible function pointer types assigning to 'void (*)(__attribute__((noescape)) int *)' from 'void (*)(int *)'}}
  22
  23   funcptr_ee = c ? &func_ne : &func_en;
  24   funcptr_nn = c ? &func_ne : &func_en; // expected-warning {{incompatible function pointer types assigning to 'void (*)(__attribute__((noescape)) int *, __attribute__((noescape)) int *)' from 'void (*)(int *, int *)'}}
  25 }