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https://issues.apache.org/jira/browse/SYSTEMML-1357?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm updated SYSTEMML-1357:
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Description:
Right now our value type promotion semantics are inconsistent across matrices
and scalars and across different types of binary scalar-scalar operations
(relational, arithmetic, builtin). This task aims to fix this and establish the
following value type promotion semantics:
* if any input type is double, both inputs are interpreted as doubles
* else if any input type is long, both inputs are interpreted as long
* else if any input type is boolean, both inputs are interpreted as boolean
Furthermore, (1) strings are not part of type promotion, and (2) boolean
true/false is interpreted as 1/0 (consistent with matrix relational operations).
was:
Right now our value type promotion semantics are inconsistent across matrices
and scalars and across different types of binary scalar-scalar operations
(relational, arithmetic, builtin). This task aims to fix this and establish the
following value type promotion semantics:
* if any input type is double, both inputs are interpreted as doubles
* else if any input type is long, both inputs are interpreted as long
* else if any input type is boolean, both inputs are interpreted as boolean
Furthermore, (1) strings are not part of type promotion, and (2) boolean
true/false is interpreted as 1/0 (consistent with matrix relational operations).
> Fix value type promotion semantics of all scalar-scalar operations
> ------------------------------------------------------------------
>
> Key: SYSTEMML-1357
> URL: https://issues.apache.org/jira/browse/SYSTEMML-1357
> Project: SystemML
> Issue Type: Bug
> Reporter: Matthias Boehm
>
> Right now our value type promotion semantics are inconsistent across matrices
> and scalars and across different types of binary scalar-scalar operations
> (relational, arithmetic, builtin). This task aims to fix this and establish
> the following value type promotion semantics:
> * if any input type is double, both inputs are interpreted as doubles
> * else if any input type is long, both inputs are interpreted as long
> * else if any input type is boolean, both inputs are interpreted as boolean
> Furthermore, (1) strings are not part of type promotion, and (2) boolean
> true/false is interpreted as 1/0 (consistent with matrix relational
> operations).
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