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tests/webtbs/tw2452.pp

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+{ Source provided for Free Pascal Bug Report 2452 }
+{ Submitted by "Nikolay Nikolov" on  2003-04-06 }
+{ e-mail: [email protected] }
+Program Test;
+
+Uses
+  Math;
+
+procedure error;
+  begin
+    writeln('error');
+    halt(1);
+  end;
+
+var
+  s : string;
+
+Begin
+  { allow a small error }
+  if abs(arctan2(1,1)-7.8539816339744831E-0001)>4.0E-0019 then
+    error;
+  if arctan2(0, 1)<>0.0 then
+    error;
+  { allow a small error }
+  if abs(arctan2(1, 0)-1.5707963267948966E+0000)>2.0E-0017 then
+    error;
+  { allow a small error }
+  if abs(arctan2(-1, 0)+1.5707963267948966E+0000)>2.0E-0017 then
+    error;
+  if arctan2(0, 0)<>0.0 then
+    error;
+End.