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cc: fix returning type of sel_types #3181

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merged 3 commits into from Jan 27, 2024

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@njzjz njzjz commented Jan 26, 2024

Fix the following compiler warning:

/home/runner/work/deepmd-kit/deepmd-kit/source/api_c/src/c_api.cc:1336:17: warning: returning address of local temporary object [-Wreturn-stack-address]
  return (int*)&(dcm->dcm.sel_types())[0];
                ^~~~~~~~~~~~~~~~~~~~~~
1 warning generated.

by returning the reference of sel_type.

DataChargeModifier.sel_types is not used anywhere, even in the test, so we don't have a chance to determine if there is a possible segfault, and this warning has no actual impact.

It seems DeepTensor has returned a reference since the beginning (#137). (perhaps because DeepTensor.sel_types is used) DeepTensor and DataChargeModifier have different returned types.

Fix the following compiler warning:
```
/home/runner/work/deepmd-kit/deepmd-kit/source/api_c/src/c_api.cc:1336:17: warning: returning address of local temporary object [-Wreturn-stack-address]
  return (int*)&(dcm->dcm.sel_types())[0];
                ^~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
```

by returning the reference of sel_type.

It seems this function is not used anywhere, even in the test, so we don't have an chance to find out if there is possible segfault. (so this warning has no impact)

It seems DeepTensor has returned a reference since the beginning (deepmodeling#137). (perhaps because DeepTensor.sel_types is actually used) DeepTensor and DataChargeModifier have different returned types.
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codecov bot commented Jan 26, 2024

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (5c545f7) 76.08% compared to head (7cd3a2a) 76.08%.

Additional details and impacted files
@@           Coverage Diff           @@
##            devel    #3181   +/-   ##
=======================================
  Coverage   76.08%   76.08%           
=======================================
  Files         284      284           
  Lines       25699    25699           
  Branches     1592     1592           
=======================================
  Hits        19552    19552           
  Misses       5222     5222           
  Partials      925      925           

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@njzjz njzjz added the bug label Jan 26, 2024
@wanghan-iapcm wanghan-iapcm merged commit f900f3a into deepmodeling:devel Jan 27, 2024
48 checks passed
njzjz added a commit to njzjz/deepmd-kit that referenced this pull request Feb 4, 2024
Fix the following compiler warning:
```
/home/runner/work/deepmd-kit/deepmd-kit/source/api_c/src/c_api.cc:1336:17: warning: returning address of local temporary object [-Wreturn-stack-address]
  return (int*)&(dcm->dcm.sel_types())[0];
                ^~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
```
by returning the reference of `sel_type`.

`DataChargeModifier.sel_types` is not used anywhere, even in the test,
so we don't have a chance to determine if there is a possible segfault,
and this warning has no actual impact.

It seems `DeepTensor` has returned a reference since the beginning
(deepmodeling#137). (perhaps because
`DeepTensor.sel_types` is used) `DeepTensor` and `DataChargeModifier`
have different returned types.

(cherry picked from commit f900f3a)
wanghan-iapcm pushed a commit that referenced this pull request Feb 4, 2024
Fix the following compiler warning:
```
/home/runner/work/deepmd-kit/deepmd-kit/source/api_c/src/c_api.cc:1336:17: warning: returning address of local temporary object [-Wreturn-stack-address]
  return (int*)&(dcm->dcm.sel_types())[0];
                ^~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
```
by returning the reference of `sel_type`.

`DataChargeModifier.sel_types` is not used anywhere, even in the test,
so we don't have a chance to determine if there is a possible segfault,
and this warning has no actual impact.

It seems `DeepTensor` has returned a reference since the beginning
(#137). (perhaps because
`DeepTensor.sel_types` is used) `DeepTensor` and `DataChargeModifier`
have different returned types.

(cherry picked from commit f900f3a)
@njzjz njzjz mentioned this pull request Apr 2, 2024
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2 participants