Simple Helper function to get string (&str) from *const u8 for using with gl in Rust Lang

gl_get_string.rs

// get OpenGL version in rust
fn gl_get_string<'a>(name: gl::types::GLenum) -> &'a str {
    let v: *const u8 = unsafe { gl::GetString(name) };
    let v: &std::ffi::CStr = unsafe { std::ffi::CStr::from_ptr(v as *const i8) };
    v.to_str().unwrap()
}