Fix TransformPhysicalPointToIndex, TransformPhysicalPointToContinuousIndex [[nodiscard]] warnings#4000
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dzenanz merged 2 commits intoInsightSoftwareConsortium:masterfrom Apr 6, 2023
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When the `bool` return value of a `TransformPhysicalPointToIndex(point, index)` call can be ignored, it is preferable (for performance reasons) to call the `TransformPhysicalPointToIndex(point)` overload that just returns the index, preventing `[[nodiscard]]` compile warnings. These cases are found in Visual Studio, using the following regular expression: ` [^ ]+->TransformPhysicalPointToIndex\(.*,`
Did find code like this:
ContinuousIndexType index;
image->TransformPhysicalPointToContinuousIndex(point, index);
And replaced it by something like:
const ContinuousIndexType index =
image->template TransformPhysicalPointToContinuousIndex<ContinuousIndexValueType>(point);
When the `bool` return value is ignored, it is preferable (for performance
reasons) to call the overload that just returns the continuous index, preventing
`[[nodiscard]]` compile warnings.
These cases are found in Visual Studio, using the following regular expression:
` [^ ]+->TransformPhysicalPointToContinuousIndex\(.*,`
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dzenanz
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Thanks for addressing the warnings 💚
Possible follow-up noted inline.
| // In the context of the global coordinates | ||
| FeatureIndexType start; | ||
| this->GetInput()->TransformPhysicalPointToIndex(origin, start); | ||
| FeatureIndexType start = this->GetInput()->TransformPhysicalPointToIndex(origin); |
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It seems many of these could be marked const now?
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Indeed, thanks Matt! Maybe for another PR? (I would like to have this one merged as soon as it's "good enough", because it fixes a few warnings at https://open.cdash.org/index.php?project=Insight)
N-Dekker
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Apr 7, 2023
Fixed compile errors saying: > error C2039: 'ContinuousIndexType': is not a member of 'itk::ContinuousIndex' These compile errors were introduced by pull request InsightSoftwareConsortium#4000 commit 7cda5ba "COMP: Fix TransformPhysicalPointToContinuousIndex `nodiscard` warnings"
N-Dekker
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Apr 7, 2023
Fixed compile errors saying: > error C2065: 'cindex': undeclared identifier These compile errors were introduced by pull request InsightSoftwareConsortium#4000 commit 7cda5ba "COMP: Fix TransformPhysicalPointToContinuousIndex `nodiscard` warnings"
N-Dekker
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Apr 9, 2023
Added missing `template` keywords to TransformPhysicalPointToContinuousIndex calls in Nonunit/Review tests. Addressed compile errors from Ubuntu-22.04-gcc11.2-TBB-Debug saying: > error: expected primary-expression before '>' token These compile errors were introduced by pull request InsightSoftwareConsortium#4000 commit 7cda5ba "COMP: Fix TransformPhysicalPointToContinuousIndex `nodiscard` warnings"
N-Dekker
added a commit
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Apr 9, 2023
Added missing `template` keywords to TransformPhysicalPointToContinuousIndex calls in Nonunit/Review tests. Addressed compile errors from Ubuntu-22.04-gcc11.2-TBB-Debug saying: > error: expected primary-expression before '>' token These compile errors were introduced by pull request InsightSoftwareConsortium#4000 commit 7cda5ba "COMP: Fix TransformPhysicalPointToContinuousIndex `nodiscard` warnings"
dzenanz
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Apr 10, 2023
Added missing `template` keywords to TransformPhysicalPointToContinuousIndex calls in Nonunit/Review tests. Addressed compile errors from Ubuntu-22.04-gcc11.2-TBB-Debug saying: > error: expected primary-expression before '>' token These compile errors were introduced by pull request #4000 commit 7cda5ba "COMP: Fix TransformPhysicalPointToContinuousIndex `nodiscard` warnings"
N-Dekker
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Apr 17, 2023
Declared local "IndexType" variables in "Nonunit/Review" that are initialized by the result of a TransformPhysicalPointToIndex(point) call `const`. Follow-up to commit 49ece7f "COMP: Fix TransformPhysicalPointToIndex `nodiscard` warnings" Suggested by Matt McCormick at InsightSoftwareConsortium#4000 (comment)
dzenanz
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Apr 17, 2023
Declared local "IndexType" variables in "Nonunit/Review" that are initialized by the result of a TransformPhysicalPointToIndex(point) call `const`. Follow-up to commit 49ece7f "COMP: Fix TransformPhysicalPointToIndex `nodiscard` warnings" Suggested by Matt McCormick at #4000 (comment)
hjmjohnson
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May 6, 2026
Fixed compile errors saying: > error C2039: 'ContinuousIndexType': is not a member of 'itk::ContinuousIndex' These compile errors were introduced by pull request InsightSoftwareConsortium#4000 commit 5365846 "COMP: Fix TransformPhysicalPointToContinuousIndex `nodiscard` warnings"
hjmjohnson
pushed a commit
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May 6, 2026
Fixed compile errors saying: > error C2065: 'cindex': undeclared identifier These compile errors were introduced by pull request InsightSoftwareConsortium#4000 commit 5365846 "COMP: Fix TransformPhysicalPointToContinuousIndex `nodiscard` warnings"
hjmjohnson
pushed a commit
to hjmjohnson/ITK
that referenced
this pull request
May 6, 2026
Added missing `template` keywords to TransformPhysicalPointToContinuousIndex calls in Nonunit/Review tests. Addressed compile errors from Ubuntu-22.04-gcc11.2-TBB-Debug saying: > error: expected primary-expression before '>' token These compile errors were introduced by pull request InsightSoftwareConsortium#4000 commit 5365846 "COMP: Fix TransformPhysicalPointToContinuousIndex `nodiscard` warnings"
hjmjohnson
pushed a commit
to hjmjohnson/ITK
that referenced
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May 6, 2026
Declared local "IndexType" variables in "Nonunit/Review" that are initialized by the result of a TransformPhysicalPointToIndex(point) call `const`. Follow-up to commit 0c7d6ae "COMP: Fix TransformPhysicalPointToIndex `nodiscard` warnings" Suggested by Matt McCormick at InsightSoftwareConsortium#4000 (comment)
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Replacing
TransformPhysicalPointToIndex(point, index)withindex = TransformPhysicalPointToIndex(point)appeared to be a no-brainer, while replacing theTransformPhysicalPointToContinuousIndexcalls was somewhat more challenging... but still no rocket science.