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Adapt any string-like type to be used by {fmt} just like the standard string types already supported. The adaption is totally non-intrusive.

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Signed-off-by: Daniela Engert <dani@ngrt.de>
This commit is contained in:
Daniela Engert
2018-10-08 20:14:39 +02:00
committed by Victor Zverovich
parent 846c644e84
commit 2c81c851b2
6 changed files with 184 additions and 73 deletions
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18
include/fmt/format.h
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@@ -1190,11 +1190,6 @@ inline typename std::enable_if<sizeof(Double) != sizeof(uint64_t), bool>::type
template <typename Double>
void sprintf_format(Double, internal::buffer &, core_format_specs);
template <typename S>
struct format_string_traits<
S, typename std::enable_if<std::is_base_of<compile_string, S>::value>::type>:
format_string_traits_base<char> {};
template <typename Handler>
FMT_CONSTEXPR void handle_int_type_spec(char spec, Handler &&handler) {
switch (spec) {
@@ -3345,20 +3340,20 @@ inline typename buffer_context<FMT_CHAR(String)>::type::iterator vformat_to(
basic_format_args<typename buffer_context<Char>::type> args) {
typedef back_insert_range<internal::basic_buffer<FMT_CHAR(String)> > range;
return vformat_to<arg_formatter<range>>(
buf, basic_string_view<Char>(format_str), args);
buf, to_string_view(format_str), args);
}
template <
typename String, typename... Args,
std::size_t SIZE = inline_buffer_size,
typename Char = typename internal::format_string_traits<String>::char_type>
typename Char = typename internal::has_to_string_view<String>::char_type>
inline typename buffer_context<Char>::type::iterator format_to(
basic_memory_buffer<Char, SIZE> &buf, const String &format_str,
const Args &... args) {
internal::check_format_string<Args...>(format_str);
typedef typename buffer_context<Char>::type context;
format_arg_store<context, Args...> as{args...};
return vformat_to(buf, basic_string_view<Char>(format_str),
return vformat_to(buf, to_string_view(format_str),
basic_format_args<context>(as));
}
@@ -3378,7 +3373,8 @@ inline OutputIt vformat_to(
OutputIt out, const String &format_str,
typename format_args_t<OutputIt, FMT_CHAR(String)>::type args) {
typedef output_range<OutputIt, FMT_CHAR(String)> range;
return vformat_to<arg_formatter<range>>(range(out), format_str, args);
return vformat_to<arg_formatter<range>>(range(out),
to_string_view(format_str), args);
}
/**
@@ -3398,7 +3394,7 @@ inline FMT_ENABLE_IF_STRING(S, OutputIt)
internal::check_format_string<Args...>(format_str);
typedef typename format_context_t<OutputIt, FMT_CHAR(S)>::type context;
format_arg_store<context, Args...> as{args...};
return vformat_to(out, basic_string_view<FMT_CHAR(S)>(format_str),
return vformat_to(out, to_string_view(format_str),
basic_format_args<context>(as));
}
@@ -3448,7 +3444,7 @@ inline FMT_ENABLE_IF_STRING(S, format_to_n_result<OutputIt>)
internal::check_format_string<Args...>(format_str);
typedef FMT_CHAR(S) Char;
format_arg_store<format_to_n_context<OutputIt, Char>, Args...> as(args...);
return vformat_to_n(out, n, internal::to_string_view(format_str),
return vformat_to_n(out, n, to_string_view(format_str),
format_to_n_args<OutputIt, Char>(as));
}