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// RUN: %boogie -noVerify %s > %t
// RUN: %diff %s.expect %t
var g: int where g == 12;
procedure P(x: int where x > 0) returns (y: int where y < 0);
requires x < 100;
modifies g;
ensures -100 < y;
implementation P(xx: int) returns (yy: int)
{
var a: int;
var b: int;
start:
a := xx;
call b := P(a);
yy := b;
return;
}
type double;
function F(double) returns (double);
function G(double) returns (bool);
procedure Q(omega: double where omega == F(omega),
psi: double where psi + 1 == 0, // error: psi doesn't have right type for +
pi: double where F(pi), // error: F has wrong return type
sigma: double where G(sigma));
const SomeConstant: name;
function fgh(int) returns (int);
procedure Cnst(n: name where n <: SomeConstant /*this SomeConstant refers to the const*/) returns (SomeConstant: int)
{
var k: int where k != SomeConstant; // fine, since SomeConstants refers to the out parameter
var m: name where m != SomeConstant; // error: types don't match up
var r: ref where (forall abc: int :: abc == SomeConstant);
var b: bool;
start:
b := (forall x: int :: fgh(x) < SomeConstant);
b := (forall l: name :: l == SomeConstant); // error: SomeConstant here refers to the out parameter
return;
}
type ref, name;
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