Access Violation on STL Vector.clear()

[Greyze]

Hey all,

I'm using a C++ vector for storing C++ strings, unfortunately when I delete the strings after use I get an access violation error.

The code for using the vector is very simple so it won't be a huge paste.

In my header file I have:

vector<string> fileNames;

In my cpp file I have:

	/* Sky Box */
	fileNames.push_back("Textures/skybox/lostatseanight_front.jpg");
	fileNames.push_back("Textures/skybox/lostatseanight_back.jpg");
	fileNames.push_back("Textures/skybox/lostatseanight_left.jpg");
	fileNames.push_back("Textures/skybox/lostatseanight_right.jpg");
	fileNames.push_back("Textures/skybox/lostatseanight_top.jpg");
	fileNames.push_back("Textures/skybox/lostatseanight_bottom.jpg");

        //Using SOIL to load textures in my program
	for (int i = 0; i < 6; i++)
	{
		skyBox[i] = SOIL_load_OGL_texture
			(
			fileNames[i].c_str(),
			SOIL_LOAD_AUTO,
			SOIL_CREATE_NEW_ID,
			SOIL_FLAG_INVERT_Y
			);

		if(skyBox[i] == 0)
			return false;

		// Typical Texture Generation Using Data From The Bitmap
		glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
		glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
		glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
		glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
	}

	fileNames.clear();

The access violation happens when clear is called, and unfortunately I simply have no clew why.. I have used vectors for a long time and this has never happened before.

Help appreciated!
Thanks.

[Greyze]

It seems that theres an issue with me using vectors in my project altogether.

I got rid of all the code you see above, no pushing data no clearing.. the only thing left was the vector<string> fileNames; in my class header, when the program exits I still get the access violation.

[Athar]

You have undefined behavior somewhere. Use the debugger and valgrind to find out where the problem is. Enable debug iterators as well.

[Greyze]

Problem solved, it was a silly typo in my skyBox[] variable.

I had;

	GLuint skyBox[5];
	vector<string> fileNames;

The skybox was supposed to be [6].

The for loop iterated 6 times, therefore writing data outside the bounds of the skybox[] array, which sequentially lead to writing that data into my vector.

Thanks for the tips btw, i've never heared of these debugging tools and features, they look very interesting!