clang/test/Analysis/designated-initializer-values.c

   1 // RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -std=c99 -verify %s
   2
   3 void clang_analyzer_eval(int);
   4
   5 void array_init(void) {
   6   int a[5] = {[4] = 29, [2] = 15, [0] = 4};
   7   clang_analyzer_eval(a[0] == 4);  // expected-warning{{TRUE}}
   8   clang_analyzer_eval(a[1] == 0);  // expected-warning{{TRUE}}
   9   clang_analyzer_eval(a[2] == 15); // expected-warning{{TRUE}}
  10   clang_analyzer_eval(a[3] == 0);  // expected-warning{{TRUE}}
  11   clang_analyzer_eval(a[4] == 29); // expected-warning{{TRUE}}
  12   int b[5] = {[0 ... 2] = 1, [4] = 5};
  13   clang_analyzer_eval(b[0] == 1); // expected-warning{{TRUE}}
  14   clang_analyzer_eval(b[1] == 1); // expected-warning{{TRUE}}
  15   clang_analyzer_eval(b[2] == 1); // expected-warning{{TRUE}}
  16   clang_analyzer_eval(b[3] == 0); // expected-warning{{TRUE}}
  17   clang_analyzer_eval(b[4] == 5); // expected-warning{{TRUE}}
  18 }
  19
  20 struct point {
  21   int x, y;
  22 };
  23
  24 void struct_init(void) {
  25   struct point p = {.y = 5, .x = 3};
  26   clang_analyzer_eval(p.x == 3); // expected-warning{{TRUE}}
  27   clang_analyzer_eval(p.y == 5); // expected-warning{{TRUE}}
  28 }
  29
  30 void array_of_struct(void) {
  31   struct point ptarray[3] = { [2].y = 1, [2].x = 2, [0].x = 3 };
  32   clang_analyzer_eval(ptarray[0].x == 3); // expected-warning{{TRUE}}
  33   clang_analyzer_eval(ptarray[0].y == 0); // expected-warning{{TRUE}}
  34   clang_analyzer_eval(ptarray[1].x == 0); // expected-warning{{TRUE}}
  35   clang_analyzer_eval(ptarray[1].y == 0); // expected-warning{{TRUE}}
  36   clang_analyzer_eval(ptarray[2].x == 2); // expected-warning{{TRUE}}
  37   clang_analyzer_eval(ptarray[2].y == 1); // expected-warning{{TRUE}}
  38 }