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Minor cleanup

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This commit is contained in:
Victor Zverovich
2019-02-10 08:42:53 -08:00
parent e4572e5def
commit f041f128f5
2 changed files with 39 additions and 52 deletions
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74
include/fmt/core.h
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@@ -208,6 +208,8 @@
# include <functional> # include <functional>
#endif #endif
#define FMT_ENABLE_IF_T(...) typename std::enable_if<__VA_ARGS__>::type
FMT_BEGIN_NAMESPACE FMT_BEGIN_NAMESPACE
namespace internal { namespace internal {
@@ -511,8 +513,8 @@ struct compile_string {};
template <typename S> template <typename S>
struct is_compile_string : std::is_base_of<compile_string, S> {}; struct is_compile_string : std::is_base_of<compile_string, S> {};
template <typename S, typename Enable = typename std::enable_if< template <typename S,
is_compile_string<S>::value>::type> typename Enable = FMT_ENABLE_IF_T(is_compile_string<S>::value)>
FMT_CONSTEXPR basic_string_view<typename S::char_type> to_string_view( FMT_CONSTEXPR basic_string_view<typename S::char_type> to_string_view(
const S& s) { const S& s) {
return s; return s;
@@ -790,18 +792,14 @@ FMT_MAKE_VALUE(uint_type, unsigned char, unsigned)
// This doesn't use FMT_MAKE_VALUE because of ambiguity in gcc 4.4. // This doesn't use FMT_MAKE_VALUE because of ambiguity in gcc 4.4.
template <typename C, typename Char> template <typename C, typename Char>
FMT_CONSTEXPR FMT_CONSTEXPR FMT_ENABLE_IF_T(std::is_same<typename C::char_type, Char>::value,
typename std::enable_if<std::is_same<typename C::char_type, Char>::value, init<C, int, char_type>) make_value(Char val) {
init<C, int, char_type>>::type
make_value(Char val) {
return val; return val;
} }
template <typename C> template <typename C>
FMT_CONSTEXPR FMT_CONSTEXPR FMT_ENABLE_IF_T(!std::is_same<typename C::char_type, char>::value,
typename std::enable_if<!std::is_same<typename C::char_type, char>::value, init<C, int, char_type>) make_value(char val) {
init<C, int, char_type>>::type
make_value(char val) {
return val; return val;
} }
@@ -838,39 +836,35 @@ FMT_MAKE_VALUE(pointer_type, std::nullptr_t, const void*)
// formatting of "[const] volatile char *" which is printed as bool by // formatting of "[const] volatile char *" which is printed as bool by
// iostreams. // iostreams.
template <typename C, typename T> template <typename C, typename T>
typename std::enable_if<!std::is_same<T, typename C::char_type>::value>::type FMT_ENABLE_IF_T(!std::is_same<T, typename C::char_type>::value)
make_value(const T*) { make_value(const T*) {
static_assert(!sizeof(T), "formatting of non-void pointers is disallowed"); static_assert(!sizeof(T), "formatting of non-void pointers is disallowed");
} }
template <typename C, typename T> template <typename C, typename T>
inline inline FMT_ENABLE_IF_T(
typename std::enable_if<std::is_enum<T>::value && std::is_enum<T>::value&& convert_to_int<T, typename C::char_type>::value,
convert_to_int<T, typename C::char_type>::value, init<C, int, int_type>) make_value(const T& val) {
init<C, int, int_type>>::type
make_value(const T& val) {
return static_cast<int>(val); return static_cast<int>(val);
} }
template <typename C, typename T, typename Char = typename C::char_type> template <typename C, typename T, typename Char = typename C::char_type>
inline typename std::enable_if< inline FMT_ENABLE_IF_T(is_constructible<basic_string_view<Char>, T>::value &&
is_constructible<basic_string_view<Char>, T>::value &&
!internal::is_string<T>::value, !internal::is_string<T>::value,
init<C, basic_string_view<Char>, string_type>>::type init<C, basic_string_view<Char>, string_type>)
make_value(const T& val) { make_value(const T& val) {
return basic_string_view<Char>(val); return basic_string_view<Char>(val);
} }
template <typename C, typename T, typename Char = typename C::char_type> template <typename C, typename T, typename Char = typename C::char_type>
inline typename std::enable_if< inline FMT_ENABLE_IF_T(
!convert_to_int<T, Char>::value && !std::is_same<T, Char>::value && !convert_to_int<T, Char>::value && !std::is_same<T, Char>::value &&
!std::is_convertible<T, basic_string_view<Char>>::value && !std::is_convertible<T, basic_string_view<Char>>::value &&
!is_constructible<basic_string_view<Char>, T>::value && !is_constructible<basic_string_view<Char>, T>::value &&
!internal::is_string<T>::value, !internal::is_string<T>::value,
// Implicit conversion to std::string is not handled here because it's // Implicit conversion to std::string is not handled here because it's
// unsafe: https://github.com/fmtlib/fmt/issues/729 // unsafe: https://github.com/fmtlib/fmt/issues/729
init<C, const T&, custom_type>>::type init<C, const T&, custom_type>) make_value(const T& val) {
make_value(const T& val) {
return val; return val;
} }
@@ -883,9 +877,9 @@ init<C, const void*, named_arg_type> make_value(
} }
template <typename C, typename S> template <typename C, typename S>
FMT_CONSTEXPR11 typename std::enable_if< FMT_CONSTEXPR11 FMT_ENABLE_IF_T(
internal::is_string<S>::value, internal::is_string<S>::value,
init<C, basic_string_view<typename C::char_type>, string_type>>::type init<C, basic_string_view<typename C::char_type>, string_type>)
make_value(const S& val) { make_value(const S& val) {
// Handle adapted strings. // Handle adapted strings.
static_assert(std::is_same<typename C::char_type, static_assert(std::is_same<typename C::char_type,
@@ -1050,9 +1044,6 @@ class locale_ref {
template <typename Locale> Locale get() const; template <typename Locale> Locale get() const;
}; };
template <typename OutputIt, typename Context, typename Char>
class context_base {};
template <typename Context, typename T> struct get_type { template <typename Context, typename T> struct get_type {
typedef decltype( typedef decltype(
make_value<Context>(declval<typename std::decay<T>::type&>())) value_type; make_value<Context>(declval<typename std::decay<T>::type&>())) value_type;
@@ -1077,13 +1068,12 @@ FMT_CONSTEXPR basic_format_arg<Context> make_arg(const T& value) {
} }
template <bool IS_PACKED, typename Context, typename T> template <bool IS_PACKED, typename Context, typename T>
inline typename std::enable_if<IS_PACKED, value<Context>>::type make_arg( inline FMT_ENABLE_IF_T(IS_PACKED, value<Context>) make_arg(const T& value) {
const T& value) {
return make_value<Context>(value); return make_value<Context>(value);
} }
template <bool IS_PACKED, typename Context, typename T> template <bool IS_PACKED, typename Context, typename T>
inline typename std::enable_if<!IS_PACKED, basic_format_arg<Context>>::type inline FMT_ENABLE_IF_T(!IS_PACKED, basic_format_arg<Context>)
make_arg(const T& value) { make_arg(const T& value) {
return make_arg<Context>(value); return make_arg<Context>(value);
} }
@@ -1317,8 +1307,6 @@ struct wformat_args : basic_format_args<wformat_context> {
: basic_format_args<wformat_context>(std::forward<Args>(arg)...) {} : basic_format_args<wformat_context>(std::forward<Args>(arg)...) {}
}; };
#define FMT_ENABLE_IF_T(B, T) typename std::enable_if<B, T>::type
#ifndef FMT_USE_ALIAS_TEMPLATES #ifndef FMT_USE_ALIAS_TEMPLATES
# define FMT_USE_ALIAS_TEMPLATES FMT_HAS_FEATURE(cxx_alias_templates) # define FMT_USE_ALIAS_TEMPLATES FMT_HAS_FEATURE(cxx_alias_templates)
#endif #endif
@@ -1367,11 +1355,11 @@ template <typename T, typename Char> struct named_arg : named_arg_base<Char> {
}; };
template <typename... Args, typename S> template <typename... Args, typename S>
inline typename std::enable_if<!is_compile_string<S>::value>::type inline FMT_ENABLE_IF_T(!is_compile_string<S>::value)
check_format_string(const S&) {} check_format_string(const S&) {}
template <typename... Args, typename S> template <typename... Args, typename S>
typename std::enable_if<is_compile_string<S>::value>::type check_format_string( FMT_ENABLE_IF_T(is_compile_string<S>::value)
S); check_format_string(S);
template <typename S, typename... Args> template <typename S, typename... Args>
struct checked_args struct checked_args
@@ -1430,8 +1418,8 @@ struct is_contiguous<internal::basic_buffer<Char>> : std::true_type {};
/** Formats a string and writes the output to ``out``. */ /** Formats a string and writes the output to ``out``. */
template <typename Container, typename S> template <typename Container, typename S>
typename std::enable_if<is_contiguous<Container>::value, FMT_ENABLE_IF_T(is_contiguous<Container>::value,
std::back_insert_iterator<Container>>::type std::back_insert_iterator<Container>)
vformat_to(std::back_insert_iterator<Container> out, const S& format_str, vformat_to(std::back_insert_iterator<Container> out, const S& format_str,
basic_format_args<typename buffer_context<FMT_CHAR(S)>::type> args) { basic_format_args<typename buffer_context<FMT_CHAR(S)>::type> args) {
internal::container_buffer<Container> buf(internal::get_container(out)); internal::container_buffer<Container> buf(internal::get_container(out));
@@ -1440,13 +1428,13 @@ vformat_to(std::back_insert_iterator<Container> out, const S& format_str,
} }
template <typename Container, typename S, typename... Args> template <typename Container, typename S, typename... Args>
inline typename std::enable_if<is_contiguous<Container>::value && inline FMT_ENABLE_IF_T(
internal::is_string<S>::value, is_contiguous<Container>::value&& internal::is_string<S>::value,
std::back_insert_iterator<Container>>::type std::back_insert_iterator<Container>)
format_to(std::back_insert_iterator<Container> out, const S& format_str, format_to(std::back_insert_iterator<Container> out, const S& format_str,
const Args&... args) { const Args&... args) {
internal::checked_args<S, Args...> ca(format_str, args...); return vformat_to(out, to_string_view(format_str),
return vformat_to(out, to_string_view(format_str), *ca); {internal::checked_args<S, Args...>(format_str, args...)});
} }
template <typename S, typename Char = FMT_CHAR(S)> template <typename S, typename Char = FMT_CHAR(S)>
@@ -1471,7 +1459,7 @@ inline std::basic_string<FMT_CHAR(S)> format(const S& format_str,
const Args&... args) { const Args&... args) {
return internal::vformat( return internal::vformat(
to_string_view(format_str), to_string_view(format_str),
*internal::checked_args<S, Args...>(format_str, args...)); {internal::checked_args<S, Args...>(format_str, args...)});
} }
FMT_API void vprint(std::FILE* f, string_view format_str, format_args args); FMT_API void vprint(std::FILE* f, string_view format_str, format_args args);

1
include/fmt/printf.h
View File

@@ -350,7 +350,6 @@ class basic_printf_context {
}; };
private: private:
typedef internal::context_base<OutputIt, basic_printf_context, Char> base;
typedef basic_format_specs<char_type> format_specs; typedef basic_format_specs<char_type> format_specs;
OutputIt out_; OutputIt out_;