check for multi times FPU exception generation

tests/test/divexcp.pp

@@ -0,0 +1,84 @@
+
+{$mode objfpc}
+
+uses
+  sysutils;
+
+const
+  Program_has_errors : boolean = false;
+  exception_called   : boolean = false;
+  TestNumber : longint = 10000;
+
+procedure test_exception(const s : string);
+  begin
+    if not(exception_called) then
+      begin
+        Writeln('Exception not called : ',s);
+        Program_has_errors := true;
+      end;
+  end;
+
+var
+   i,j : longint;
+   e : extended;
+   exception_count : longint;
+begin
+   j:=0;
+   i:=100;
+   try
+   exception_called:=false;
+   e:=i/j;
+   except
+     on e : exception do
+       begin
+         Writeln('exception called ',e.message);
+         exception_called:=true;
+       end;
+   end;
+   test_exception('division by zero for reals');
+   try
+   exception_called:=false;
+   j := i div j;
+   except
+     on e : exception do
+       begin
+         Writeln('exception called ',e.message);
+         exception_called:=true;
+       end;
+   end;
+   test_exception('division by zero for integers');
+   exception_count:=0;
+   for j:=1 to TestNumber do
+     begin
+       try
+         i:=0;
+         e:=j/i;
+       except
+         on e : exception do
+           begin
+             inc(exception_count);
+           end;
+       end;
+
+     end;
+   if exception_count<>TestNumber then
+     begin
+       program_has_errors:=true;
+       Writeln('Could not generate ',TestNumber,' consecutive exceptions');
+       Writeln('Only ',exception_count,' exceptions were generated');
+     end;
+   try
+   exception_called:=false;
+   i := -1;
+   e := ln(i);
+   except
+     on e : exception do
+       begin
+         Writeln('exception called ',e.message);
+         exception_called:=true;
+       end;
+   end;
+   test_exception('ln(-1)');
+   if program_has_errors then
+     Halt(1);
+end.