[BUG]: 在vs2019下编写回调函数接口引用pybind11/function.h时编译会显示“语法错误:意外的令牌标识符,预期的令牌为类型说明符”
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Description
Required prerequisites
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What version (or hash if on master) of pybind11 are you using?
2.12.0.dev1
Problem description
在vs2019下编写回调函数接口引用pybind11/function.h时编译会显示“语法错误:意外的令牌标识符,预期的令牌为类型说明符”
头文件function.h的83行#if !(defined(_MSC_VER) && _MSC_VER == 1916 && defined(PYBIND11_CPP17))这个代码是否应该是
#if !(defined(_MSC_VER) && _MSC_VER >= 1916 && defined(PYBIND11_CPP17))
Reproducible example code
No response
Is this a regression? Put the last known working version here if it is.
Not a regression
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with pybind11/function.h around line 83 and inspect how the _MSC_VER and PYBIND11_CPP17 condition affects callback interface compilation under VS2019. Reproduce the reported compiler diagnostic with a minimal callback interface, then verify that the header compiles successfully with the intended VS2019 versions.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp, python
- Domain
- build-system
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100