From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 gcc/testsuite/gfortran.dg/atan2_1.f90 | 37 +++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 gcc/testsuite/gfortran.dg/atan2_1.f90

(limited to 'gcc/testsuite/gfortran.dg/atan2_1.f90')

diff --git a/gcc/testsuite/gfortran.dg/atan2_1.f90 b/gcc/testsuite/gfortran.dg/atan2_1.f90
new file mode 100644
index 000000000..65da63cd2
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/atan2_1.f90
@@ -0,0 +1,37 @@
+! { dg-do run }
+! { dg-options "-ffloat-store" }
+!
+! PR fortran/33197
+!
+! Check for Fortran 2008's ATAN(Y,X) - which is equivalent
+! to Fortran 77's ATAN2(Y,X).
+!
+integer :: i
+real, parameter :: pi4 = 2*acos(0.0)
+real, parameter :: pi8 = 2*acos(0.0d0)
+do i = 1, 10
+  if(atan(1.0,  i/10.0)  -atan2(1.0,  i/10.)    /= 0.0)   call abort()
+  if(atan(1.0d0,i/10.0d0)-atan2(1.0d0,i/10.0d0) /= 0.0d0) call abort()
+end do
+
+! Atan(1,1) = Pi/4
+if (abs(atan(1.0,1.0)    -pi4/4.0)   > epsilon(pi4)) call abort()
+if (abs(atan(1.0d0,1.0d0)-pi8/4.0d0) > epsilon(pi8)) call abort()
+
+! Atan(-1,1) = -Pi/4
+if (abs(atan(-1.0,1.0)    +pi4/4.0)   > epsilon(pi4)) call abort()
+if (abs(atan(-1.0d0,1.0d0)+pi8/4.0d0) > epsilon(pi8)) call abort()
+
+! Atan(1,-1) = 3/4*Pi
+if (abs(atan(1.0,-1.0)    -3.0*pi4/4.0)     > epsilon(pi4)) call abort()
+if (abs(atan(1.0d0,-1.0d0)-3.0d0*pi8/4.0d0) > epsilon(pi8)) call abort()
+
+! Atan(-1,-1) = -3/4*Pi
+if (abs(atan(-1.0,-1.0)    +3.0*pi4/4.0)     > epsilon(pi4)) call abort()
+if (abs(atan(-1.0d0,-1.0d0)+3.0d0*pi8/4.0d0) > epsilon(pi8)) call abort()
+
+! Atan(3,-5) = 2.60117315331920908301906501867... = Pi - 3/2 atan(3/5)
+if (abs(atan(3.0,-5.0)    -2.60117315331920908301906501867) > epsilon(pi4)) call abort()
+if (abs(atan(3.0d0,-5.0d0)-2.60117315331920908301906501867d0) > epsilon(pi8)) call abort()
+
+end
-- 
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