# API documentation¶

Some functions may exist twice, once for their namespace and once for global namespace to make easier to write very common functions

For instance, in general we use glm_vec_dot to get dot product of two vec3. Now we can also do this with glm_dot, same for _cross and so on…

The original function stays where it is, the function in global namespace of same name is just an alias, so there is no call version of those functions. e.g there is no func like glmc_dot because glm_dot is just alias for glm_vec_dot

By including cglm/cglm.h header you will include all inline version of functions. Since functions in this header[s] are inline you don’t need to build or link cglm against your project.

But by including cglm/call.h header you will include all non-inline version of functions. You need to build cglm and link it. Follow the Building cglm documentation for this