View Compilation Error

0_0_8977818_10834.cpp:15: error: `int clock' redeclared as different kind of symbol
GCC/bin/../lib/gcc/mingw32/3.4.2/../../../../include/time.h:84: error: previous declaration of `clock_t clock()'
0_0_8977818_10834.cpp:15: error: declaration of `int clock'
GCC/bin/../lib/gcc/mingw32/3.4.2/../../../../include/time.h:84: error: conflicts with previous declaration `clock_t clock()'
0_0_8977818_10834.cpp: In function `void tarjan(int)':
0_0_8977818_10834.cpp:20: error: ISO C++ forbids incrementing a pointer of type `clock_t (*)()'
0_0_8977818_10834.cpp:20: error: non-lvalue in increment
0_0_8977818_10834.cpp: In function `int main()':
0_0_8977818_10834.cpp:82: error: assignment of function `clock_t clock()'
0_0_8977818_10834.cpp:82: error: cannot convert `int' to `clock_t ()()' in assignment