scip_sys

Function SCIPvarCompare

Source 
pub unsafe extern "C" fn SCIPvarCompare(
    var1: *mut SCIP_VAR,
    var2: *mut SCIP_VAR,
) -> c_int
Expand description

compares the index of two variables, returns -1 if first is smaller than, and +1 if first is greater than second variable index; returns 0 if both indices are equal, which means both variables are equal