View Compilation Error

0_0_15758527_15002.cpp: In function 'int dcmp(double)':
0_0_15758527_15002.cpp:41:21: error: expected primary-expression before '%' token
 int dcmp(double x) {%0
                     ^
0_0_15758527_15002.cpp:41:22: error: expected '}' at end of input
 int dcmp(double x) {%0
                      ^