Matthias Boehm created SYSTEMML-1972:
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Summary: Indexing with invalid range does not throw error
Key: SYSTEMML-1972
URL: https://issues.apache.org/jira/browse/SYSTEMML-1972
Project: SystemML
Issue Type: Bug
Reporter: Matthias Boehm
Matrix and frame right indexing is subject to rewrites, where we simplify for
example {{X[,a]}} to {X}} if the input and output have equal sizes. This
rewrite is, however, only valid if the index ranges are valid. We do throw
validation errors during parsing, but this does not apply to matrices and index
expressions that are unknown during initial compilation.
For, example the below expressions computes 1000 although it should throw an
error:
{code}
X = matrix(1, 1000, 1);
if( 0!=0 )
X = cbind(X,X);
print(sum(X[,2]))
{code}
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