clang/test/Analysis/max-nodes-suppress-on-sink.cpp

   1 // RUN: %clang_analyze_cc1 -x c++ -fcxx-exceptions -analyzer-checker=core,unix.Malloc,debug.ExprInspection -analyzer-config max-nodes=12 -verify %s
   2
   3 // Here we test how "suppress on sink" feature of certain bugtypes interacts
   4 // with reaching analysis limits. See comments in max-nodes-suppress-on-sink.c
   5 // for more discussion.
   6
   7 typedef __typeof(sizeof(int)) size_t;
   8 void *malloc(size_t);
   9
  10 void clang_analyzer_warnIfReached(void);
  11
  12 // Because we don't have a better approach, we currently treat throw as
  13 // noreturn.
  14 void test_throw_treated_as_noreturn() {
  15   void *p = malloc(1); // no-warning
  16
  17   clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
  18   clang_analyzer_warnIfReached(); // no-warning
  19
  20   throw 0;
  21 }
  22
  23 // FIXME: Handled throws shouldn't be suppressing us!
  24 void test_handled_throw_treated_as_noreturn() {
  25   void *p = malloc(1); // no-warning
  26
  27   clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
  28   clang_analyzer_warnIfReached(); // no-warning
  29
  30   try {
  31     throw 0;
  32   } catch (int i) {
  33   }
  34 }