Table of Contents
sum
Table of Contents
Prototype: sum(list)
Return type: real
Description: Return the sum of the reals in list
.
This function might be used for simple ring computation. Of course, you could
easily combine sum
with readstringarray
or readreallist
etc., to collect
summary information from a source external to CFEngine.
Arguments:
list
:string
, in the range:[a-zA-Z0-9_$(){}\[\].:]+
Example:
body common control
{
bundlesequence => { "test" };
}
bundle agent test
{
vars:
"adds_to_six" ilist => { "1", "2", "3" };
"six" real => sum("adds_to_six");
"adds_to_zero" rlist => { "1.0", "2", "-3e0" };
"zero" real => sum("adds_to_zero");
reports:
"six is $(six), zero is $(zero)";
}
Output:
R: six is 6.000000, zero is 0.000000
Because $(six)
and $(zero)
are both real numbers, the report that is
generated will be:
six is 6.000000, zero is 0.000000
Notes:
History: Was introduced in version 3.1.0b1,Nova 2.0.0b1 (2010)