View Compilation Error

0_0_37205141_6585.cpp:105:1: error: '__always_inline' does not name a type
 __always_inline point getRoot(point p, point st, point ed){
 ^
0_0_37205141_6585.cpp:114:1: error: '__always_inline' does not name a type
 __always_inline point change(point st, point ed, point next, double l){
 ^
0_0_37205141_6585.cpp: In function 'double getMinAreaRect(point*, int, point*)':
0_0_37205141_6585.cpp:169:57: error: 'getRoot' was not declared in this scope
                 ds[0] = getRoot(con[l], con[i], con[i+1]);
                                                         ^
0_0_37205141_6585.cpp:171:60: error: 'change' was not declared in this scope
                 ds[2] = change(con[i], con[i+1], ds[1], len);
                                                            ^