csegmentation-faultwcs

Printing elements from an array of wide characters in C Language

I have the following array of wide characters:

wchar_t alphabet[] = L"abcdefghijklmnñopqrstuvwxyz"; /*  array of wide characters */

Everytime I try to run the following code, a "segmentation violation" error occurs 

printf("%ls %d\n", alphabet, wcslen (alphabet));
int i;
for (i = 0; i <= wcslen (alphabet); i++)
{
    printf("%ls\n", alphabet[i]);
}

How can I correct this error?

Solution

  • Your loop is overstepping the array.

    Arrays are indexed from 0, so the condition in a loop like yours should always test with <, never with <=.

    Also, you're printing single characters with %s, which is also wrong. It should be %lc for a single wide character.