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Simplify arg_formatter

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This commit is contained in:
Victor Zverovich
2020-05-29 16:51:45 -07:00
parent 519571edec
commit 19c5b5d159
6 changed files with 47 additions and 44 deletions
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9
test/custom-formatter-test.cc
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@@ -18,10 +18,9 @@
// A custom argument formatter that doesn't print `-` for floating-point values
// rounded to 0.
class custom_arg_formatter
: public fmt::arg_formatter<fmt::buffer_range<char>> {
: public fmt::arg_formatter<fmt::format_context::iterator, char> {
public:
using range = fmt::buffer_range<char>;
typedef fmt::arg_formatter<range> base;
using base = fmt::arg_formatter<fmt::format_context::iterator, char>;
custom_arg_formatter(fmt::format_context& ctx,
fmt::format_parse_context* parse_ctx,
@@ -39,8 +38,10 @@ class custom_arg_formatter
std::string custom_vformat(fmt::string_view format_str, fmt::format_args args) {
fmt::memory_buffer buffer;
fmt::internal::buffer<char>& base = buffer;
// Pass custom argument formatter as a template arg to vwrite.
fmt::vformat_to<custom_arg_formatter>(buffer, format_str, args);
fmt::vformat_to<custom_arg_formatter>(std::back_inserter(base), format_str,
args);
return std::string(buffer.data(), buffer.size());
}