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Avoid conditional macros to disable float support

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This commit is contained in:
Alberto Aguirre 2020-03-19 16:33:51 -05:00
parent a15c81e5ff
commit c3c9a69ace
2 changed files with 26 additions and 40 deletions
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12
include/fmt/core.h
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@ -1095,23 +1095,11 @@ FMT_CONSTEXPR auto visit_format_arg(Visitor&& vis,
case internal::type::char_type:
return vis(arg.value_.char_value);
case internal::type::float_type:
#if FMT_USE_FLOAT
return vis(arg.value_.float_value);
#else
break;
#endif
case internal::type::double_type:
#if FMT_USE_DOUBLE
return vis(arg.value_.double_value);
#else
break;
#endif
case internal::type::long_double_type:
#if FMT_USE_LONG_DOUBLE
return vis(arg.value_.long_double_value);
#else
break;
#endif
case internal::type::cstring_type:
return vis(arg.value_.string.data);
case internal::type::string_type:

54
include/fmt/format.h
View File

@ -1685,9 +1685,14 @@ template <typename Range> class basic_writer {
handle_int_type_spec(spec.type, int_writer<T, Spec>(*this, value, spec));
}
#if FMT_USE_FLOAT || FMT_USE_DOUBLE || FMT_USE_LONG_DOUBLE
template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)>
void write_float(T value, format_specs specs = {}) {
void write(T value, format_specs specs = {}) {
if (const_check(
(std::is_same<T, float>::value && !FMT_USE_FLOAT) ||
(std::is_same<T, double>::value && !FMT_USE_DOUBLE) ||
(std::is_same<T, long double>::value && !FMT_USE_LONG_DOUBLE))) {
return;
}
float_specs fspecs = parse_float_type_spec(specs);
fspecs.sign = specs.sign;
if (std::signbit(value)) { // value < 0 is false for NaN so use signbit.
@ -1744,17 +1749,6 @@ template <typename Range> class basic_writer {
static_cast<int>(buffer.size()),
exp, fspecs, point));
}
#endif
#if FMT_USE_FLOAT
void write(float value, format_specs specs = {}) { write_float(value, specs); }
#endif
#if FMT_USE_DOUBLE
void write(double value, format_specs specs = {}) { write_float(value, specs); }
#endif
#if FMT_USE_LONG_DOUBLE
void write(long double value, format_specs specs = {}) { write_float(value, specs); }
#endif
void write(char value) {
auto&& it = reserve(1);
@ -1897,6 +1891,13 @@ class arg_formatter_base {
template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)>
iterator operator()(T value) {
if (const_check(
(std::is_same<T, float>::value && !FMT_USE_FLOAT) ||
(std::is_same<T, double>::value && !FMT_USE_DOUBLE) ||
(std::is_same<T, long double>::value && !FMT_USE_LONG_DOUBLE))) {
FMT_ASSERT(false, "unsupported float argument");
return out();
}
writer_.write(value, specs_ ? *specs_ : format_specs());
return out();
}
@ -2937,25 +2938,22 @@ struct formatter<T, Char,
&specs_, internal::char_specs_checker<decltype(eh)>(specs_.type, eh));
break;
case internal::type::float_type:
#if FMT_USE_FLOAT
internal::parse_float_type_spec(specs_, eh);
#else
FMT_ASSERT(false, "float support disabled");
#endif
if (internal::const_check(FMT_USE_FLOAT))
internal::parse_float_type_spec(specs_, eh);
else
FMT_ASSERT(false, "float support disabled");
break;
case internal::type::double_type:
#if FMT_USE_DOUBLE
internal::parse_float_type_spec(specs_, eh);
#else
FMT_ASSERT(false, "double support disabled");
#endif
if (internal::const_check(FMT_USE_DOUBLE))
internal::parse_float_type_spec(specs_, eh);
else
FMT_ASSERT(false, "double support disabled");
break;
case internal::type::long_double_type:
#if FMT_USE_LONG_DOUBLE
internal::parse_float_type_spec(specs_, eh);
#else
FMT_ASSERT(false, "long double support disabled");
#endif
if (internal::const_check(FMT_USE_LONG_DOUBLE))
internal::parse_float_type_spec(specs_, eh);
else
FMT_ASSERT(false, "long double support disabled");
break;
case internal::type::cstring_type:
internal::handle_cstring_type_spec(