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Add more compilers to CI and increase FMT_PEDANTIC warning levels (#736)

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* Add a _lot_ more warnings to FMT_PEDANTIC
Fix these warnings

* Add more compilers to CI
Fix (some) of the compiler errors with them

* Enable -Werror on CI
Increase warning level on MSVC when compiling with FMT_PEDANTIC

* Add VS 2013 and 2015 to Appveyor

* Fix Appveyor tests
Formatting

* Implement requested changes
Fix some of the MSVC warnings
Implement C++11 integer_sequence

* Reintroduce appveyor-build.py

* Remove ranges-test from tests

* Remove (some) explicit warning suppressions
Fix C++ standard setting in CI

* Remove (some) explicit warning suppressions
Fix C++ standard setting in CI

* Fix test builds with C++11

* Enable pedantic warnings on tests

* Fix warnings from edits to master

* Cleanups

* Add C++11 support to ranges.h
Re-enable ranges-test
Fix a Visual Studio error about function not returning a value in printf.h
Fix a bug in .travis.yml
This commit is contained in:
Elias Kosunen
2018-06-06 16:57:59 +03:00
committed by Victor Zverovich
parent dd1a5ef7f9
commit 691a7a91a1
36 changed files with 589 additions and 376 deletions
Download Patch File Download Diff File Expand all files Collapse all files

91
include/fmt/ranges.h
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@@ -126,18 +126,39 @@ struct is_tuple_like {
static FMT_CONSTEXPR_DECL const bool value =
is_tuple_like_<T>::value && !is_range_<T>::value;
};
} // namespace internal
#if FMT_HAS_FEATURE(__cpp_lib_integer_sequence) || FMT_MSC_VER >= 1900
# define FMT_USE_INTEGER_SEQUENCE 1
// Check for integer_sequence
#if defined(__cpp_lib_integer_sequence) || FMT_MSC_VER >= 1900
template <typename T, T... N>
using integer_sequence = std::integer_sequence<T, N...>;
template <std::size_t... N>
using index_sequence = std::index_sequence<N...>;
template <std::size_t N>
using make_index_sequence = std::make_index_sequence<N>;
#else
# define FMT_USE_INTEGER_SEQUENCE 0
template <typename T, T... N>
struct integer_sequence {
typedef T value_type;
static FMT_CONSTEXPR std::size_t size() {
return sizeof...(N);
}
};
template <std::size_t... N>
using index_sequence = integer_sequence<std::size_t, N...>;
template <typename T, std::size_t N, T... Ns>
struct make_integer_sequence : make_integer_sequence<T, N - 1, N - 1, Ns...> {};
template <typename T, T... Ns>
struct make_integer_sequence<T, 0, Ns...> : integer_sequence<T, Ns...> {};
template <std::size_t N>
using make_index_sequence = make_integer_sequence<std::size_t, N>;
#endif
#if FMT_USE_INTEGER_SEQUENCE
namespace internal {
template <size_t... Is, class Tuple, class F>
void for_each(std::index_sequence<Is...>, Tuple &&tup, F &&f) noexcept {
template <class Tuple, class F, size_t... Is>
void for_each(index_sequence<Is...>, Tuple &&tup, F &&f) noexcept {
using std::get;
// using free function get<I>(T) now.
const int _[] = {0, ((void)f(get<Is>(tup)), 0)...};
@@ -145,7 +166,7 @@ void for_each(std::index_sequence<Is...>, Tuple &&tup, F &&f) noexcept {
}
template <class T>
FMT_CONSTEXPR std::make_index_sequence<std::tuple_size<T>::value>
FMT_CONSTEXPR make_index_sequence<std::tuple_size<T>::value>
get_indexes(T const &) { return {}; }
template <class Tuple, class F>
@@ -157,21 +178,13 @@ void for_each(Tuple &&tup, F &&f) {
template <typename TupleT, typename Char>
struct formatter<TupleT, Char,
typename std::enable_if<fmt::internal::is_tuple_like<TupleT>::value>::type> {
fmt::formatting_tuple<Char> formatting;
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext &ctx) -> decltype(ctx.begin()) {
return formatting.parse(ctx);
}
template <typename FormatContext = format_context>
auto format(const TupleT &values, FormatContext &ctx) -> decltype(ctx.out()) {
auto out = ctx.out();
std::size_t i = 0;
internal::copy(formatting.prefix, out);
internal::for_each(values, [&](const auto &v) {
typename std::enable_if<internal::is_tuple_like<TupleT>::value>::type> {
private:
// C++11 generic lambda for format()
template <typename FormatContext>
struct format_each {
template <typename T>
void operator()(const T& v) {
if (i > 0) {
if (formatting.add_prepostfix_space) {
*out++ = ' ';
@@ -184,7 +197,28 @@ struct formatter<TupleT, Char,
format_to(out, "{}", v);
}
++i;
});
}
formatting_tuple<Char>& formatting;
std::size_t& i;
typename std::add_lvalue_reference<decltype(std::declval<FormatContext>().out())>::type out;
};
public:
formatting_tuple<Char> formatting;
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext &ctx) -> decltype(ctx.begin()) {
return formatting.parse(ctx);
}
template <typename FormatContext = format_context>
auto format(const TupleT &values, FormatContext &ctx) -> decltype(ctx.out()) {
auto out = ctx.out();
std::size_t i = 0;
internal::copy(formatting.prefix, out);
internal::for_each(values, format_each<FormatContext>{formatting, i, out});
if (formatting.add_prepostfix_space) {
*out++ = ' ';
}
@@ -193,13 +227,12 @@ struct formatter<TupleT, Char,
return ctx.out();
}
};
#endif // FMT_USE_INTEGER_SEQUENCE
template <typename RangeT, typename Char>
struct formatter< RangeT, Char,
typename std::enable_if<fmt::internal::is_range<RangeT>::value>::type> {
struct formatter<RangeT, Char,
typename std::enable_if<internal::is_range<RangeT>::value>::type> {
fmt::formatting_range<Char> formatting;
formatting_range<Char> formatting;
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext &ctx) -> decltype(ctx.begin()) {