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Invert dependencies
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@ -18,7 +18,7 @@
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#include <ostream>
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#include <type_traits>
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#include "ostream.h" // formatbuf
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#include "format.h"
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FMT_BEGIN_NAMESPACE
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@ -329,6 +329,39 @@ inline auto localtime_s(...) -> null<> { return null<>(); }
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inline auto gmtime_r(...) -> null<> { return null<>(); }
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inline auto gmtime_s(...) -> null<> { return null<>(); }
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// It is defined here and not in ostream.h because the latter has expensive
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// includes.
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template <typename Streambuf> class formatbuf : public Streambuf {
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private:
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using char_type = typename Streambuf::char_type;
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using streamsize = decltype(std::declval<Streambuf>().sputn(nullptr, 0));
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using int_type = typename Streambuf::int_type;
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using traits_type = typename Streambuf::traits_type;
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buffer<char_type>& buffer_;
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public:
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explicit formatbuf(buffer<char_type>& buf) : buffer_(buf) {}
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protected:
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// The put area is always empty. This makes the implementation simpler and has
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// the advantage that the streambuf and the buffer are always in sync and
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// sputc never writes into uninitialized memory. A disadvantage is that each
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// call to sputc always results in a (virtual) call to overflow. There is no
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// disadvantage here for sputn since this always results in a call to xsputn.
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auto overflow(int_type ch) -> int_type override {
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if (!traits_type::eq_int_type(ch, traits_type::eof()))
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buffer_.push_back(static_cast<char_type>(ch));
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return ch;
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}
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auto xsputn(const char_type* s, streamsize count) -> streamsize override {
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buffer_.append(s, s + count);
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return count;
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}
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};
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inline auto get_classic_locale() -> const std::locale& {
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static const auto& locale = std::locale::classic();
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return locale;
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@ -18,42 +18,11 @@
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# include <io.h>
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#endif
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#include "format.h"
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#include "chrono.h" // formatbuf
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FMT_BEGIN_NAMESPACE
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namespace detail {
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template <typename Streambuf> class formatbuf : public Streambuf {
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private:
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using char_type = typename Streambuf::char_type;
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using streamsize = decltype(std::declval<Streambuf>().sputn(nullptr, 0));
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using int_type = typename Streambuf::int_type;
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using traits_type = typename Streambuf::traits_type;
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buffer<char_type>& buffer_;
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public:
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explicit formatbuf(buffer<char_type>& buf) : buffer_(buf) {}
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protected:
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// The put area is always empty. This makes the implementation simpler and has
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// the advantage that the streambuf and the buffer are always in sync and
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// sputc never writes into uninitialized memory. A disadvantage is that each
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// call to sputc always results in a (virtual) call to overflow. There is no
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// disadvantage here for sputn since this always results in a call to xsputn.
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auto overflow(int_type ch) -> int_type override {
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if (!traits_type::eq_int_type(ch, traits_type::eof()))
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buffer_.push_back(static_cast<char_type>(ch));
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return ch;
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}
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auto xsputn(const char_type* s, streamsize count) -> streamsize override {
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buffer_.append(s, s + count);
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return count;
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}
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};
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// Generate a unique explicit instantion in every translation unit using a tag
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// type in an anonymous namespace.
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namespace {
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