File: malloc-free-after-return.cpp

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (21 lines) | stat: -rw-r--r-- 476 bytes parent folder | download | duplicates (22) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.NewDelete -verify %s

#include "Inputs/system-header-simulator-cxx.h"

struct S {
  S() : Data(new int) {}
  ~S() { delete Data; }
  int *getData() { return Data; }

private:
  int *Data;
};

int *freeAfterReturnTemp() {
  return S().getData(); // expected-warning {{Use of memory after it is freed}}
}

int *freeAfterReturnLocal() {
  S X;
  return X.getData(); // expected-warning {{Use of memory after it is freed}}
}