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1 files changed, 18 insertions, 0 deletions

diff --git a/sys/etc/envgetr.x b/sys/etc/envgetr.x
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+++ b/sys/etc/envgetr.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+# ENVGETR -- Fetch an environment variable and try to interpret its value
+# as a real.  Abort if variable is not found or cannot be converted to
+# a number.
+
+real procedure envgetr (varname)
+
+char	varname[ARB]
+double	val, envgetd()
+
+begin
+	val = envgetd (varname)
+	if (IS_INDEFD(val))
+	    return (INDEFR)
+	else
+	    return (val)
+end