View Compilation Error

0_0_7190486_16999.cpp: In member function `void Edge::read()':
0_0_7190486_16999.cpp:81: error: `Assert' undeclared (first use this function)
0_0_7190486_16999.cpp:81: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_7190486_16999.cpp: In function `void Assert(int)':
0_0_7190486_16999.cpp:114: error: `void Assert(int)' used prior to declaration