Evolution ShaderProgram class

shaderprogram.h

struct ShaderVariable {
    char* name;
    int location;
    bool uniform;
    
    ShaderVariable* next;
};

class ShaderProgram {
public:
    ShaderProgram();
    ~ShaderProgram();

public:
    int uniform(char* name);
    int attribute(char* name);
    
public:
    int program;
    
protected:
    int _var(char* name, bool uniform);
    
    ShaderVariable* m_list;
};