View Compilation Error

0_0_32458926_23306.cpp:38:31: error: expected '}' at end of input
         return a.x*b.x+a.y*b.y;
                               ^
0_0_32458926_23306.cpp: In function 'double dot(node, node)':
0_0_32458926_23306.cpp:38:31: error: expected '}' at end of input
0_0_32458926_23306.cpp: At global scope:
0_0_32458926_23306.cpp:38:31: error: expected unqualified-id at end of input