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https://issues.apache.org/jira/browse/SYSTEMML-1981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm closed SYSTEMML-1981.
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Resolution: Fixed
Assignee: Matthias Boehm
Fix Version/s: SystemML 1.0
> Wrong value type propagation in function w/ auto cast of inputs
> ---------------------------------------------------------------
>
> Key: SYSTEMML-1981
> URL: https://issues.apache.org/jira/browse/SYSTEMML-1981
> Project: SystemML
> Issue Type: Bug
> Reporter: Matthias Boehm
> Assignee: Matthias Boehm
> Priority: Minor
> Fix For: SystemML 1.0
>
>
> The following code returns the output as {{DOUBLE}} although it's supposed to
> return {{INT}}.
> {code}
> foo = function(Matrix[double] X, int input) return (int out) {
> out = input;
> for(i in 1:2) {
> tmp = sum(X);
> out = input + as.integer(tmp);
> }
> }
> X = seq(1,100);
> xmax = max(X); #input of type double
> y = foo(X, xmax); #auto casting
> print(y);
> {code}
> For double to int casts, this is a minor issue but creates warnings that are
> annoying if such a function is called very often:
> {code}
> 17/11/01 20:49:00 WARN controlprogram.ProgramBlock: Function output out has
> wrong value type: DOUBLE.
> {code}
> Furthermore, for boolean it even leads to compilation and runtime issues on
> arithmetic expressions.
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