View Compilation Error

0_0_28362971_16752.cpp: In member function 'bool Seg::operator<(const Seg&) const':
0_0_28362971_16752.cpp:15:23: error: 'c' was not declared in this scope
   if(h==cmp.h) return c>cmp.c;
                       ^
0_0_28362971_16752.cpp:15:29: error: 'const struct Seg' has no member named 'c'
   if(h==cmp.h) return c>cmp.c;
                             ^