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Fix core version of vformat_to

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This commit is contained in:
Victor Zverovich 2018-10-24 18:42:42 -07:00
parent ea4010d704
commit 61e6d2e38c
4 changed files with 31 additions and 12 deletions
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15
include/fmt/core.h
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@ -16,7 +16,7 @@
#include <type_traits>
// The fmt library version in the form major * 10000 + minor * 100 + patch.
#define FMT_VERSION 50201
#define FMT_VERSION 50202
#ifdef __has_feature
# define FMT_HAS_FEATURE(x) __has_feature(x)
@ -1350,6 +1350,11 @@ template <typename Char>
std::basic_string<Char> vformat(
basic_string_view<Char> format_str,
basic_format_args<typename buffer_context<Char>::type> args);
template <typename Char>
typename buffer_context<Char>::type::iterator vformat_to(
internal::basic_buffer<Char> &buf, basic_string_view<Char> format_str,
basic_format_args<typename buffer_context<Char>::type> args);
}
/**
@ -1371,16 +1376,10 @@ inline internal::named_arg<T, wchar_t> arg(wstring_view name, const T &arg) {
return {name, arg};
}
// This function template is deleted intentionally to disable nested named
// arguments as in ``format("{}", arg("a", arg("b", 42)))``.
// Disable nested named arguments, e.g. ``arg("a", arg("b", 42))``.
template <typename S, typename T, typename Char>
void arg(S, internal::named_arg<T, Char>) = delete;
template <typename S>
typename buffer_context<FMT_CHAR(S)>::type::iterator vformat_to(
internal::basic_buffer<FMT_CHAR(S)> &buf, const S &format_str,
basic_format_args<buffer_context<FMT_CHAR(S)> > args);
template <typename Container>
struct is_contiguous: std::false_type {};

15
include/fmt/format.h
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@ -3365,15 +3365,22 @@ std::basic_string<Char> to_string(const basic_memory_buffer<Char, SIZE> &buf) {
return std::basic_string<Char>(buf.data(), buf.size());
}
template <typename String, typename Char = FMT_CHAR(String)>
inline typename buffer_context<FMT_CHAR(String)>::type::iterator vformat_to(
internal::basic_buffer<Char> &buf, const String &format_str,
template <typename Char>
typename buffer_context<Char>::type::iterator internal::vformat_to(
internal::basic_buffer<Char> &buf, basic_string_view<Char> format_str,
basic_format_args<typename buffer_context<Char>::type> args) {
typedef back_insert_range<internal::basic_buffer<FMT_CHAR(String)> > range;
typedef back_insert_range<internal::basic_buffer<Char> > range;
return vformat_to<arg_formatter<range>>(
buf, to_string_view(format_str), args);
}
template <typename S, typename Char = FMT_CHAR(S)>
inline typename buffer_context<Char>::type::iterator vformat_to(
internal::basic_buffer<Char> &buf, const S &format_str,
basic_format_args<typename buffer_context<Char>::type> args) {
return vformat_to(buf, to_string_view(format_str), args);
}
template <
typename S, typename... Args,
std::size_t SIZE = inline_buffer_size,

3
src/format.cc
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@ -28,6 +28,9 @@ template FMT_API int internal::char_traits<char>::format_float(
template FMT_API std::string internal::vformat<char>(
string_view, basic_format_args<format_context>);
template format_context::iterator internal::vformat_to(
internal::buffer &, string_view, basic_format_args<format_context>);
template FMT_API void internal::sprintf_format(
double, internal::buffer &, core_format_specs);
template FMT_API void internal::sprintf_format(

10
test/core-test.cc
View File

@ -532,6 +532,16 @@ TEST(CoreTest, Format) {
EXPECT_EQ(fmt::format("{}", 42), "42");
}
TEST(CoreTest, FormatTo) {
// This should work without including fmt/format.h.
#ifdef FMT_FORMAT_H_
# error fmt/format.h must not be included in the core test
#endif
std::string s;
fmt::format_to(std::back_inserter(s), "{}", 42);
EXPECT_EQ(s, "42");
}
TEST(CoreTest, ToStringViewForeignStrings) {
using namespace my_ns;
using namespace FakeQt;