clang/test/Analysis/new-with-exceptions.cpp

   1 // RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -std=c++11 -fexceptions -fcxx-exceptions -verify %s
   2 // RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -std=c++11 -verify %s
   3
   4 void clang_analyzer_eval(bool);
   5
   6 typedef __typeof__(sizeof(int)) size_t;
   7 extern "C" void *malloc(size_t);
   8
   9 // This is the standard placement new.
  10 inline void* operator new(size_t, void* __p) throw()
  11 {
  12   return __p;
  13 }
  14
  15 struct NoThrow {
  16   void *operator new(size_t) throw();
  17 };
  18
  19 struct NoExcept {
  20   void *operator new(size_t) noexcept;
  21 };
  22
  23 struct DefaultThrow {
  24   void *operator new(size_t);
  25 };
  26
  27 struct ExplicitThrow {
  28   void *operator new(size_t) throw(int);
  29 };
  30
  31 void testNew() {
  32   clang_analyzer_eval(new NoThrow); // expected-warning{{UNKNOWN}}
  33   clang_analyzer_eval(new NoExcept); // expected-warning{{UNKNOWN}}
  34
  35   clang_analyzer_eval(new DefaultThrow); // expected-warning{{TRUE}}
  36   clang_analyzer_eval(new ExplicitThrow); // expected-warning{{TRUE}}
  37 }
  38
  39 void testNewArray() {
  40   clang_analyzer_eval(new NoThrow[2]); // expected-warning{{TRUE}}
  41   clang_analyzer_eval(new NoExcept[2]); // expected-warning{{TRUE}}
  42   clang_analyzer_eval(new DefaultThrow[2]); // expected-warning{{TRUE}}
  43   clang_analyzer_eval(new ExplicitThrow[2]); // expected-warning{{TRUE}}
  44 }
  45
  46 extern void *operator new[](size_t, int) noexcept;
  47
  48 void testNewArrayNoThrow() {
  49   clang_analyzer_eval(new (1) NoThrow[2]); // expected-warning{{UNKNOWN}}
  50   clang_analyzer_eval(new (1) NoExcept[2]); // expected-warning{{UNKNOWN}}
  51   clang_analyzer_eval(new (1) DefaultThrow[2]); // expected-warning{{UNKNOWN}}
  52   clang_analyzer_eval(new (1) ExplicitThrow[2]); // expected-warning{{UNKNOWN}}
  53 }