clang/test/Analysis/ctor-trivial-copy.cpp

   1 // RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -analyzer-config c++-inlining=constructors -verify %s
   2
   3
   4 template<typename T>
   5 void clang_analyzer_dump(T&);
   6
   7 struct aggr {
   8   int x;
   9   int y;
  10 };
  11
  12 struct empty {
  13 };
  14
  15 void test_copy_return() {
  16   aggr s1 = {1, 2};
  17   aggr const& cr1 = aggr(s1);
  18   clang_analyzer_dump(cr1); // expected-warning-re {{&lifetime_extended_object{aggr, cr1, S{{[0-9]+}}} }}
  19
  20   empty s2;
  21   empty const& cr2 = empty{s2};
  22   clang_analyzer_dump(cr2); // expected-warning-re {{&lifetime_extended_object{empty, cr2, S{{[0-9]+}}} }}
  23 }
  24
  25 void test_assign_return() {
  26   aggr s1 = {1, 2};
  27   aggr d1;
  28   clang_analyzer_dump(d1 = s1); // expected-warning {{&d1 }}
  29
  30   empty s2;
  31   empty d2;
  32   clang_analyzer_dump(d2 = s2); // expected-warning {{&d2 }} was Unknown
  33 }
  34