File: malloc-std-namespace.cpp

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-10.1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 1,999,140 kB
  • sloc: cpp: 6,951,711; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,033; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,252; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (24 lines) | stat: -rw-r--r-- 971 bytes parent folder | download | duplicates (6) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc -verify -analyzer-output=text %s

// This file tests that unix.Malloc can handle C++ code where e.g. malloc and
// free are declared within the namespace 'std' by the header <cstdlib>.

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

void leak() {
  int *p = static_cast<int*>(std::malloc(sizeof(int))); // expected-note{{Memory is allocated}}
} // expected-warning{{Potential leak of memory pointed to by 'p'}}
  // expected-note@-1{{Potential leak of memory pointed to by 'p'}}

void no_leak() {
  int *p = static_cast<int*>(std::malloc(sizeof(int)));
  std::free(p); // no-warning
}

void invalid_free() {
  int i;
  int *p = &i;
  //expected-note@+2{{Argument to free() is the address of the local variable 'i', which is not memory allocated by malloc()}}
  //expected-warning@+1{{Argument to free() is the address of the local variable 'i', which is not memory allocated by malloc()}}
  std::free(p);
}