View Compilation Error

0_0_8890827_23355.cpp: In function `int main()':
0_0_8890827_23355.cpp:180: error: `OPEN' undeclared (first use this function)
0_0_8890827_23355.cpp:180: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8890827_23355.cpp:180: error: expected `;' before "clock_t"
0_0_8890827_23355.cpp:235: error: `A' undeclared (first use this function)