View Compilation Error

0_0_38443318_26926.cpp: In member function 'MInt<P> MInt<P>::inv() const':
0_0_38443318_26926.cpp:96:22: error: there are no arguments to 'assert' that depend on a template parameter, so a declaration of 'assert' must be available [-fpermissive]
         assert(x != 0);
                      ^
0_0_38443318_26926.cpp:96:22: note: (if you use '-fpermissive', G++ will accept your code, but allowing the use of an undeclared name is deprecated)