CODEWITHSUNDEEP
c++visual-studio-2008types
Max
Max

Reputation: 13

Windows has triggered a breakpoint in myprogram.exe

Windows has triggered a breakpoint in myprogram.exe. This may be due to a corruption of the heap, which indicates a bug in myprogram.exe or any of the DLLs it has loaded. This may also be due to the user pressing F12 while projtest.exe has focus. The output window may have more diagnostic information.

Working code:

void main()
{
    const unsigned char a_size = 15;
    int *a = new int[a_size];
    memset(a,0,a_size*sizeof(a));
    delete [] a;
}

Error code:

void main()
{
    const unsigned char a_size = 15;
    char *a = new char[a_size];
    memset(a,0,a_size*sizeof(a));
   >delete [] a;
}

'>' is breakpoint position.

So, char type in dynamic arrays causing errors.

Additional Info : Using Visual Studio C++ 2008

Upvotes: 1

Views: 6976

Answers (1)

pts
pts

Reputation: 87201

A star is missing within sizeof:

memset(a,0,a_size*sizeof(*a));

That's because:

sizeof(a) == sizeof(int*)  -- usually 4 or 8
sizeof(*a) == sizeof(int)  -- usually 4

Upvotes: 1

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