From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001 From: Joseph Hunkeler Date: Wed, 8 Jul 2015 20:46:52 -0400 Subject: Initial commit --- sys/etc/envgetr.x | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 sys/etc/envgetr.x (limited to 'sys/etc/envgetr.x') diff --git a/sys/etc/envgetr.x b/sys/etc/envgetr.x new file mode 100644 index 00000000..5ec04d58 --- /dev/null +++ b/sys/etc/envgetr.x @@ -0,0 +1,18 @@ +# 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 -- cgit