c++ gl question

[takamineg240]

Quick question.

Is there a way to pass an int in c++ into a openGL function that is looking for a GLint??

example I am trying to pass an int to

glVertex4iv(faces.at(faceLoop));

Where faces is a vector of ints and faceLoop is an integer.

[SlyMaelstrom]

I'm pretty sure GLints and GLfloats are just typedef's for ints and floats. You can pass an int where it expect a GLint and you can pass a float where it expects a GLfloat (and so on with other OpenGL types). I could be wrong though. If just passing it doesn't work, then perhaps try casting it.

glVertex4iv((GLint)faces.at(faceLoop));

[dwks]

If you don't have the prototype for that function (ie, the right header file) then it might not have an implicit cast.

[Tonto]

glVertex4iv takes an array. Lucky you, vector memory is guaranteed to be contiguous. 100% guaranteed mofckyug, you hear dat?!

glVertex4iv(&faces.at(0));
glVertex4iv(&faces[0]);
glVertex4iv(faces.begin());

Or if the 4 ints you want to pass are not at the start of the vector

glVertex4iv(&faces.at(index));
glVertex4iv(&faces[index]);
glVertex4iv(faces.begin() + index);