带有Mat分配的Eclipse CDT语法错误解析器错误：它可以编译并正常运行 [英] Eclipse CDT syntax error parser false error with Mat assignment: It compiles and runs ok

问题描述

在此代码行中，x用红色下划线标记为错误：

In this line of code, the x is red underlined as error:

cv::Mat x = cv::Mat::eye(2,2,CV_8U);

具有以下说明：

Invalid arguments '
Candidates are:
 Mat()
 Mat(int, int, int)
 Mat(int, int, int, const cv::Scalar_<double> &)
 ... (it goes on, full error description at the bottom)

它可以编译并正常运行。

It compiles and runs ok.

09:12:02 Build Finished. 0 errors, 0 warnings. (took 1s.721ms)

它过去工作正常。我无法确切知道何时开始，但是在中间，我将Eclipse更新为最新的稳定版本版本： 2019-06（4.12.0）Build ID：20190614-1200。

It used to work fine. I can't tell exactly when this started, but in the middle I updated Eclipse to the last stable version Version: 2019-06 (4.12.0) Build id: 20190614-1200.

与解析器有关。我正在使用elf-parser作为错误解析器（Linux的默认配置）。我尝试使用c ++ 11和c ++ 17，但没有告诉要使用哪个C ++。

It's something with the parser. I'm using elf-parser as error parser (the default configuration for Linux). I tried with c++11 and c++17, and without telling which C++ to use.

分配时会发生一般的错误错误MatExpr 转换为 Mat 声明。 MatExpr 应该会自动转换为 Mat （就像往常一样）。它对opencv来说太具体了，但是有时错误分析器无法识别 std :: endl ，因此我认为分析器的问题并不特定于opencv。

The generic false error happens when assigning a MatExpr to a Mat declaration. MatExpr is supposed to be automatically cast to Mat (like it always did). It's too specific to opencv, but sometimes error parser fails to recognize std::endl, so I believe the problem with the parser isn't specific to opencv.

完整的错误描述，我很确定这里没有相关内容：

Full error description for completeness, I'm pretty sure there is nothing relevant here:

Invalid arguments '
Candidates are:
 Mat()
 Mat(int, int, int)
 Mat(int, int, int, const cv::Scalar_<double> &)
 Mat(cv::Size_<int>, int)
 Mat(cv::Size_<int>, int, const cv::Scalar_<double> &)
 Mat(int, const int *, int)
 Mat(int, const int *, int, const cv::Scalar_<double> &)
 Mat(const std::vector<int,std::allocator<int>> &, int)
 Mat(const std::vector<int,std::allocator<int>> &, int, const cv::Scalar_<double> &)
 Mat(const cv::Mat &)
 Mat(int, int, int, void *, unsigned long int)
 Mat(cv::Size_<int>, int, void *, unsigned long int)
 Mat(const std::vector<#0,std::allocator<#0>> &, bool)
 Mat(std::initializer_list<#0>)
 Mat(std::initializer_list<int>, std::initializer_list<#0>)
 Mat(const std::array<#0,unsigned long int3 #1 0> &, bool)
 Mat(const cv::Vec<#0,int3 #1 0> &, bool)
 Mat(const cv::Matx<#0,int3 #1 0,int3 #2 0> &, bool)
 Mat(const cv::Point_<#0> &, bool)
 Mat(const cv::Point3_<#0> &, bool)
 Mat(const cv::MatCommaInitializer_<#0> &)
 Mat(const cv::Mat &, const cv::Range &, const cv::Range &)
 Mat(const cv::Mat &, const cv::Rect_<int> &)
 Mat(const cv::Mat &, const cv::Range *)
 Mat(const cv::Mat &, const std::vector<cv::Range,std::allocator<cv::Range>> &)
 Mat(cv::Mat &&)
 Mat(int, const int *, int, void *, const unsigned long int *)
 Mat(const std::vector<int,std::allocator<int>> &, int, void *, const unsigned long int *)
 Mat(const cv::cuda::GpuMat &)
'

推荐答案

这是Eclipse C ++解析器中的一个错误，归档为错误550397 。

This is a bug in Eclipse's C++ parser, filed as bug 550397.

更新：我也对此进行了修复。

UPDATE: I also have a fix for it.

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