Example : leak.cpp
#include<iostream>
int main()
{
int *iptr = new int; // 4 byte
char *chptr = new char; // 1 byte
double *dblptr = new double; // 8 byte
return 0;
}
// 13 byte memory leak
$ g++ leak.cpp
1 Valgring tool (linux)
Installation : $ sudo apt-get install valgrind
user : valgrind --tool=memcheck --leak-check=yes "binary"
binary eg a.out
output
==6042== LEAK SUMMARY:
==6042== definitely lost: 13 bytes in 3 blocks
==6042== indirectly lost: 0 bytes in 0 blocks
==6042== possibly lost: 0 bytes in 0 blocks
==6042== still reachable: 0 bytes in 0 blocks
==6042== suppressed: 0 bytes in 0 blocks
2 DrMemory
Installation : download from link
download tar file and extract in home dir
copy the bin folder location form the folder and add to PATH env var
eg: /home/pmvanker/DrMemory-Linux-2.3.0-1/bin
$ vim ~/.bashrc
"add this line at the end "
export PATH=/home/pmvanker/DrMemory-Linux-2.3.0-1/bin:$PATH
home/pmvanker is not same for your machine
$ source ~/.bashrc
now able to run drmemory cmd
$ drmemory -- a.out
Output
~~Dr.M~~ ERRORS FOUND:
~~Dr.M~~ 0 unique, 0 total unaddressable access(es)
~~Dr.M~~ 0 unique, 0 total uninitialized access(es)
~~Dr.M~~ 0 unique, 0 total invalid heap argument(s)
~~Dr.M~~ 0 unique, 0 total warning(s)
~~Dr.M~~ 3 unique, 3 total, 13 byte(s) of leak(s)
~~Dr.M~~ 0 unique, 0 total, 0 byte(s) of possible leak(s)
