[Bug] scatter( ) can only take 4 arguments, not less

[ianyepan]

Bug category

• bug - compilation error
• bug - compilation warning
• bug - runtime error
• bug - runtime warning
• bug - logic error

Describe the bug

According to the documentation, scatter( ) should be able to take either 2, 3, or 4 arguments (size and colors should be optional). However, the compiler tells me that there's no matching function call if I don't pass in all 4 arguments.

Steps to Reproduce

Install matplotplusplus with yay -S matplotplusplus. Inside CMakeLlists.txt, use find_package to find this external package.

# Your steps go here
mkdir build
cd build
cmake ..
make
./a.out

Output

Consolidate compiler generated dependencies of target a.out
[ 50%] Building CXX object CMakeFiles/a.out.dir/hw5.cpp.o
In file included from /usr/include/matplot/matplot.h:49,
                 from /home/yep808/Homework (Arch WSL)/C++/vector_list/hw5.cpp:1:
/usr/include/matplot/freestanding/plot.h: In instantiation of ‘auto matplot::scatter(matplot::NotAxesHandle<T>, Args&& ...) [with T1 = std::vector<long unsigned int>; Args = {std::vector<double, std::allocator<double> >&, int}; matplot::NotAxesHandle<T> = std::vector<long unsigned int>]’:
/home/yep808/Homework (Arch WSL)/C++/vector_list/hw5.cpp:114:10:   required from here
/usr/include/matplot/freestanding/plot.h:303:30: error: no matching function for call to ‘matplot::axes_type::scatter(matplot::NotAxesHandle<std::vector<long unsigned int> >&, std::vector<double>&, int)’
  303 |         return gca()->scatter(x, std::forward<Args>(args)...);
      |                ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/matplot/matplot.h:22,
                 from /home/yep808/Homework (Arch WSL)/C++/vector_list/hw5.cpp:1:
/usr/include/matplot/core/axes_type.h:2168:21: note: candidate: ‘template<class T1, class T2, class T3, class T4> matplot::line_handle matplot::axes_type::scatter(matplot::IterableValues<T1>&, matplot::IterableValues<T2>&, matplot::IterableValues<T3>&, matplot::IterableValues<T4>&)’
 2168 |         line_handle scatter(const IterableValues<T1> &x,
      |                     ^~~~~~~
/usr/include/matplot/core/axes_type.h:2168:21: note:   template argument deduction/substitution failed:
In file included from /usr/include/matplot/matplot.h:49,
                 from /home/yep808/Homework (Arch WSL)/C++/vector_list/hw5.cpp:1:
/usr/include/matplot/freestanding/plot.h:303:30: note:   couldn’t deduce template parameter ‘T4’
  303 |         return gca()->scatter(x, std::forward<Args>(args)...);
      |                ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/matplot/matplot.h:22,
                 from /home/yep808/Homework (Arch WSL)/C++/vector_list/hw5.cpp:1:
/usr/include/matplot/core/axes_type.h:2177:21: note: candidate: ‘template<class T1, class T2, class T3> matplot::line_handle matplot::axes_type::scatter(matplot::IterableValues<T1>&, matplot::IterableValues<T2>&, double, matplot::IterableValues<T3>&)’
 2177 |         line_handle scatter(const IterableValues<T1> &x,
      |                     ^~~~~~~
/usr/include/matplot/core/axes_type.h:2177:21: note:   template argument deduction/substitution failed:
In file included from /usr/include/matplot/matplot.h:49,
                 from /home/yep808/Homework (Arch WSL)/C++/vector_list/hw5.cpp:1:
/usr/include/matplot/freestanding/plot.h:303:30: note:   couldn’t deduce template parameter ‘T3’
  303 |         return gca()->scatter(x, std::forward<Args>(args)...);
      |                ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/matplot/matplot.h:22,
                 from /home/yep808/Homework (Arch WSL)/C++/vector_list/hw5.cpp:1:
/usr/include/matplot/core/axes_type.h:1136:21: note: candidate: ‘matplot::line_handle matplot::axes_type::scatter(const std::vector<double>&, const std::vector<double>&, const std::vector<double>&, const std::vector<double>&)’
 1136 |         line_handle scatter(const std::vector<double> &x,
      |                     ^~~~~~~
/usr/include/matplot/core/axes_type.h:1136:56: note:   no known conversion for argument 1 from ‘matplot::NotAxesHandle<std::vector<long unsigned int> >’ {aka ‘std::vector<long unsigned int>’} to ‘const std::vector<double>&’
 1136 |         line_handle scatter(const std::vector<double> &x,
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~^
/usr/include/matplot/core/axes_type.h:1142:21: note: candidate: ‘matplot::line_handle matplot::axes_type::scatter(const std::vector<double>&, const std::vector<double>&, double, const std::vector<double>&)’
 1142 |         line_handle scatter(const std::vector<double> &x,
      |                     ^~~~~~~
/usr/include/matplot/core/axes_type.h:1142:56: note:   no known conversion for argument 1 from ‘matplot::NotAxesHandle<std::vector<long unsigned int> >’ {aka ‘std::vector<long unsigned int>’} to ‘const std::vector<double>&’
 1142 |         line_handle scatter(const std::vector<double> &x,
      |                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~^
make[2]: *** [CMakeFiles/a.out.dir/build.make:76: CMakeFiles/a.out.dir/hw5.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:83: CMakeFiles/a.out.dir/all] Error 2
make: *** [Makefile:91: all] Error 2

Platform

• cross-platform issue - linux
• cross-platform issue - windows
• cross-platform issue - macos

Environment Details:

• OS: Arch Linux (Windows 11 WSL2)
• OS Version: KERNEL: Linux 5.10.60.1-microsoft-standard-WSL2
• Compiler: g++
• Compiler version: g++ (GCC) 11.2.0

Additional context

I suspect that the AUR holds an outdated version of the package, that's why there's no variation flexibility in function arguments. Please consider updating the package in AUR.