clang/test/Analysis/compound-literals.c

   1 // RUN: %clang_cc1 -triple=i386-apple-darwin10 -verify %s -analyze \
   2 // RUN:   -analyzer-checker=debug.ExprInspection
   3
   4 #define NULL 0
   5 void clang_analyzer_eval(int);
   6
   7 // pr28449: Used to crash.
   8 void foo(void) {
   9   static const unsigned short array[] = (const unsigned short[]){0x0F00};
  10   clang_analyzer_eval(array[0] == 0x0F00); // expected-warning{{TRUE}}
  11 }
  12
  13 // check that we propagate info through compound literal regions
  14 void bar(void) {
  15   int *integers = (int[]){1, 2, 3};
  16   clang_analyzer_eval(integers[0] == 1); // expected-warning{{TRUE}}
  17   clang_analyzer_eval(integers[1] == 2); // expected-warning{{TRUE}}
  18   clang_analyzer_eval(integers[2] == 3); // expected-warning{{TRUE}}
  19
  20   int **pointers = (int *[]){&integers[0], NULL};
  21   clang_analyzer_eval(pointers[0] == NULL); // expected-warning{{FALSE}}
  22   clang_analyzer_eval(pointers[1] == NULL); // expected-warning{{TRUE}}
  23 }