iverilog/ivtest/ivltests/sv_class17.v

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/*
* This tests a trivial class. This tests that simple property
* initializers work.
*/
program main;
// Trivial examples of classes.
class foo_t ;
int int_value = 42;
bit [3:0] bit_value = 5;
string txt_value = "text";
endclass : foo_t // foo_t
foo_t obj1;
foo_t obj2;
initial begin
obj1 = new;
// The shallow copy constructor bypasses (or at least overrides)
// property declaration assignments, so obj2 should hold the
// updated values and not the constructed values.
obj1.int_value = 43;
obj1.bit_value = 10;
obj1.txt_value = "fluf";
obj2 = new obj1;
if (obj2.int_value !== 43) begin
$display("FAILED -- obj2.int_value=%0d.", obj2.int_value);
$finish;
end
if (obj2.bit_value !== 4'd10) begin
$display("FAILED -- obj2.bit_value=%0b.", obj2.bit_value);
$finish;
end
if (obj2.txt_value != "fluf") begin
$display("FAILED -- obj2.txt_value=%s", obj2.txt_value);
$finish;
end
$display("PASSED");
$finish;
end
endprogram // main