Clang Project

clang_source_code/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
7typedef __typeof(sizeof(int)) size_t;
8void *malloc(size_t);
9
10void clang_analyzer_warnIfReached(void);
11
12// Because we don't have a better approach, we currently treat throw as
13// noreturn.
14void 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!
24void 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}
35