From db9de5783f14b25dea3a3496700b72e8dd6664fa Mon Sep 17 00:00:00 2001
From: Felix Riehn <felix@matilda>
Date: Fri, 30 Nov 2018 09:46:31 +0000
Subject: [PATCH] added gasdev routine

---
 Framework/Cascade/gasdev.f | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Framework/Cascade/gasdev.f

diff --git a/Framework/Cascade/gasdev.f b/Framework/Cascade/gasdev.f
new file mode 100644
index 00000000..70dca8c8
--- /dev/null
+++ b/Framework/Cascade/gasdev.f
@@ -0,0 +1,27 @@
+      DOUBLE PRECISION FUNCTION GASDEV(Idum)
+C***********************************************************************
+C     Gaussian deviation
+C***********************************************************************
+      IMPLICIT DOUBLE PRECISION (A-H,O-Z)
+      IMPLICIT INTEGER(I-N)
+      COMMON /RNDMGAS/ ISET
+      SAVE
+      DATA ISET/0/      
+      gasdev=idum
+      IF (ISET.EQ.0) THEN
+1       V1=2.D0*S_RNDM(0)-1.D0
+        V2=2.D0*S_RNDM(1)-1.D0
+        R=V1**2+V2**2
+        IF(R.GE.1.D0)GO TO 1
+        FAC=SQRT(-2.D0*LOG(R)/R)
+        GSET=V1*FAC
+        GASDEV=V2*FAC
+        ISET=1
+      ELSE
+        GASDEV=GSET
+        ISET=0
+      ENDIF
+      RETURN
+      END
+C***********************************************************************
+ 
-- 
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