Duplicated named arguments are ignored, but not rejected

[lewkok]

Hi,
Is example like:

#include <fmt/format.h>

int main() {
  using namespace fmt::literals;
  fmt::print("{abc} {1}", "abc"_a = 42, "abc"_a = 43 );
}

This prints: "42 43"

Or this example:

#include <fmt/format.h>

int main() {
  using namespace fmt::literals;
  fmt::print("{abc}", "abc"_a = 42, "abc"_a = 43 );
}

This prints: "42"

Is this semantics like this by design or did it happen by mistake?

[vitaut]

That's just an implementation artifact and I think we could add validation.