MSVC C4355 warning

[jbuechner]

When compiling format.cc or when using fmt::format inside other projects, MSVC reports a C4355 for

fmt/include/fmt/format.h

Line 2143 in 3860edc

: Handler(handler), checker_(*this, arg_type) {}

and

fmt/include/fmt/format.h

Line 2146 in 3860edc

: Handler(other), checker_(*this, other.arg_type_) {}

examplary compiler output

format.h(2148,1): error C4355: 'this': used in base member initializer list (compiling source file format.cc)

For our own projects we treat this warning as error.

I would like to suppress the warning inside the format.h file and can prepare a pull request for the required change.

[vitaut]

A PR is welcome but please make sure that the warning is fixed/suppressed locally. This can be done by hiding this behind an accessor.

[vitaut]

Fixed in e30d839.