clang compiler : missing include header

[juno-devel]

Just to share my experience, hope it will help someone, great and useful lib, so here it is ...

Testbed :

Debian clang version 16.0.6 (15)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin

Icecream : from master

Add #include <cstdarg> in icecream.hpp in order to avoid these following errors caused by this statement in mytest.cxx

using icecream::f_;

In file included from mytest.cxx:8:
./icecream.hpp:1613:58: error: unexpected type name 'T0': expected expression
            result.push_back(static_cast<T>(va_arg(args, T0)));
                                                         ^
./icecream.hpp:1628:38: error: expected '(' for function-style cast or type construction
            auto v = va_arg(args, int) & 0x01;
                                  ~~~^
./icecream.hpp:1647:43: error: expected '(' for function-style cast or type construction
            double d = va_arg(args, double);
                                    ~~~~~~^
./icecream.hpp:1674:41: error: unexpected type name 'T0': expected expression
        return Tree{(T)(T1)va_arg(args, T0), std::move(buf_)};
                                        ^
./icecream.hpp:1680:34: error: expected '(' for function-style cast or type construction
        auto i = va_arg(args, int) & 0x01;
                              ~~~^
./icecream.hpp:1694:37: error: expected '(' for function-style cast or type construction
        auto d = va_arg(args, double);
                              ~~~~~~^
./icecream.hpp:1873:9: error: use of undeclared identifier 'va_start'
        va_start(args, format);
        ^
./icecream.hpp:1926:9: error: use of undeclared identifier 'va_end'
        va_end(args);

GCC is more permissive and seems to ignore this ...

gcc (Debian 13.2.0-4) 13.2.0