c# - How do I recognize a System.Type instance representing SZ-Array? -

clr uses distinct system.type instances represent sz-arrays (single-dimensional, zero-based, aka vectors) , non-zero-based arrays (even if single-dimensional). need function takes instance of system.type , recognizes if represents sz-array. able check rank using getarrayrank() method, not know how check zero-based. please me?

using system;  class program {     static void main()     {         var type1 = typeof (int[]);         var type2 = array.createinstance(typeof (int), new[] {1}, new[] {1}).gettype();          console.writeline(type1 == type2); // false          console.writeline(issingledimensionalzerobasedarray(type1));  // true         console.writeline(issingledimensionalzerobasedarray(type2)); //  should false     }      static bool issingledimensionalzerobasedarray(type type)     {         // how fix implementation?         return type != null && type.isarray && type.getarrayrank() == 1;     } } 

static bool issingledimensionalzerobasedarray(type type) {     return type != null && type.isarray && type == type.getelementtype().makearraytype(); }