TaskModelIntPrecede GECODE_INT_EXPORT void GECODE_INT_EXPORT void Gecode::precede (Home home, const IntVarArgs &x, int s, int t, IntConLevel=ICL_DEF) precede Home home const IntVarArgs & x int s int t IntConLevel ICL_DEF Post propagator that s precedes t in x. This constraint enforces that $x_0\neq t$ and $x_j=t \to \bigvee_{0\leq i<j} x_i=s$ for $0\leq j<|x|$. The propagator is domain consistent. GECODE_INT_EXPORT void GECODE_INT_EXPORT void Gecode::precede (Home home, const IntVarArgs &x, const IntArgs &c, IntConLevel=ICL_DEF) precede Home home const IntVarArgs & x const IntArgs & c IntConLevel ICL_DEF Post propagator that successive values in c precede each other in x. This constraint enforces that $x_0\neq c_k$ for $0<k<|c|$ and $x_j=c_{k} \to \bigvee_{0\leq i<j} x_i=c_{k-1}$ for $0\leq j<|x|$ and $0< k<|c|$.