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Slightly better decltype() support for expressions

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decltype now accepts C++ expressions instead of just an ID, such as:

  int i,j;
  ...  decltype(i+j) ...
  ...  decltype(&i) ...

These result in a warning for non-trivial expressions which SWIG cannot evaluate:

  Warning 344: Unable to deduce decltype for 'i+j'.

See 'Type Inference' in CPlusPlus.html for workarounds.

Issue #1589
Issue #1590
This commit is contained in:
William S Fulton 2022-11-26 01:16:20 +00:00
commit 2a1711e436
8 changed files with 85 additions and 14 deletions
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@ -7,6 +7,20 @@ the issue number to the end of the URL: https://github.com/swig/swig/issues/
Version 4.2.0 (in progress)
===========================
2022-11-26: wsfulton
#1589 #1590 Slightly better decltype() support for expressions, such as:
int i,j;
... decltype(i+j) ...
... decltype(&i) ...
These result in a warning for non-trivial expressions which SWIG cannot evaluate:
Warning 344: Unable to deduce decltype for 'i+j'.
See 'Type Inference' in CPlusPlus.html for workarounds.
2022-11-25: wsfulton
#961 Fix syntax error parsing unnamed template parameters with a default value.