Debug Levels

Introduction

dmemory allows you to set more debug information if needed in three different levels. Those are information, warnings and errors.

Details

The function dmemory_init() allows you to set additional debug information with it's parameter.

Int	Additional debug description
-1	dmemory works as normal dynamic memory functions without any additions
0	No aditional debug added (only reports will be generated)
1	Only error will be issued (in case malloc/calloc/realloc returns NULL)
2	Warnings, in dmemory, warnings are referred as a double free or a free to a wrong address space
4	Library information like, no report or exceptions filename given, also, errors related to additional library features are shown as information

For example we set debug information to full in the initialization call:

$ cat example.c 
#include <stdlib.h>
#include <dmemory.h>

int main(int argc, char *argv[])
{
    dmemory_init(4);

    free((void *)0xFFFF);

    if (dmemory_end())
        return 1;

    return 0;
}
$

Now, if we run our program we'll see more information in the standard error:

$ ./example 
WARNING: [example.c:8] You can not free this variable, as it was never reserved
INFO: [LIBRARY:0] DMEMORY_EXCEPTIONS not defined, no exceptions will be used
$ cat report.txt 
(F) [example.c] [8] (address: 0x000000010007)
$