Modify tbs/tb0588.pp to check that a warning is issued about non-initialized return value, moved to tbf directory

git-svn-id: https://svn.freepascal.org/svn/fpc/trunk@40521 3ad0048d-3df7-0310-abae-a5850022a9f2

1 files changed, 32 insertions, 0 deletions

diff --git a/tests/tbf/tb0588.pp b/tests/tbf/tb0588.pp
new file mode 100644
index 0000000000..48927d702f
--- /dev/null
+++ b/tests/tbf/tb0588.pp
@@ -0,0 +1,32 @@
+{ %FAIL }
+{ %opt=-O4 -Sew }
+
+{ This code can generate trouble because
+  uninitialized retrun value in f method 
+  can have a pattern that generates a
+  floating point exception later.
+
+  As core decided not to generate an error in such cases,
+  this test was modified to al least test that a warning
+  is issued about non-initialized return value. }
+
+{$mode objfpc}
+uses
+  sysutils;
+type
+  tmyclass = class
+    function f : double;virtual;
+  end;
+
+function tmyclass.f : double;
+  begin
+  end;
+
+var
+  myclass : tmyclass;
+begin
+  myclass:=tmyclass.create;
+  writeln(myclass.f+myclass.f+myclass.f);
+  myclass.free;
+  writeln('ok');
+end.