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function pointer

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Hello everybody I am working on a function pointer but i ran into some trouble. typedef struct{ GLint size; GLenum type; GLsizei stride; const GLvoid *pointer; void (__stdcall *func)(GLvoid *); GLuint *index; } GLIndexArray; GLIndexArray vertexArray; vertexArray.func = glVertex3fv; or vertexArray.func = glVertex3iv; The problem is that glVertex3fv takes (const GLfloat*) and glVertex3iv takes (const GLint*) while my definition takes GLvoid. How can i recast the type. Thanks, Ben

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