Segmentation Fault (Core dumped) in c++

Question

This code when executed displays the expected output but prints segmentation fault (core dumped) at the end :

string str[4] = {
    "Home",
    "Office",
    "Table",
    "Bar"
};

for (int i = 0; i<5; i++)
{
    cout << str[i] << "\n";
}

Output:

Home
Office
Table
Bar
Segmentation fault (core dumped)

What is the signinficance of segmentation fault (core dumped). I searched and it seems an error like that occurs when you try to access unallocated memory, so, what's wrong with the above code?

Solution 1

you should write:

for (int i = 0; i<4; i++) //0,1,2,3 = total 4 values
{
    cout << str[i] << "\n";
}

Solution 2

C++ Arrays are 0-based so you cannot access str[4], since its indexes range 0-3.
You allocated an array, length of 4:

string str[4]

Then your loop must terminate when:

i < 4

Rather than i < 5.

Solution 3

counter should be from zero to three. For loop needs modification.

Solution 4

str is a string[4], so it has 4 elements, which means indices 0-3 are valid. You are also accessing index 4.

Solution 5

You are getting segmentation fault because you trying to access an element which does not exists i.e. str[4] The possible indices are from 0-3.

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