[SOLVED] no matching function for call to ‘std::exception::exception(<brace-enclosed initializer list>)

Issue

My project builds on Windows (vc++17) and I am new to Linux builds so I am not sure what is going on.

I created CMakeLists files for my project (with a C++17 requirement), generated the makefile, and then I used make to try build it on Linux. The error is:

/home/julien/source/zipfs/zipfs/include/zipfs/zipfs_assert.h:30:70: error: no matching function for call to ‘std::exception::exception(<brace-enclosed initializer list>)’
   30 |   zipfs_usage_error_t(const char* message) : std::exception{ message } {}
      |                                                                      ^
In file included from /usr/include/c++/9/exception:38,
                 from /usr/include/c++/9/new:40,
                 from /usr/include/c++/9/ext/new_allocator.h:33,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/c++allocator.h:33,
                 from /usr/include/c++/9/bits/allocator.h:46,
                 from /usr/include/c++/9/string:41,
                 from /home/julien/source/zipfs/zipfs/include/zipfs/zipfs_path_t.h:3,
                 from /home/julien/source/zipfs/zipfs/include/zipfs/zipfs_error_t.h:3,
                 from /home/julien/source/zipfs/zipfs/source/zipfs_error_t.cpp:1:

The incriminated code is:

zipfs_usage_error_t(const char* message) : std::exception{ message } {}

I don't see what is wrong with this; is it a c++ version mismatch ?

Solution

std::exception does not provide a constructor that accepts a const char* parameter.

If one exists on the Windows standard library you are using, it is a non-portable extension to the language.

There are many derived classes that could be used as your base class instead, which do support this constructor.

Answered By - Drew Dormann

Answer Checked By - David Marino (WPSolving Volunteer)