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Get rid of generic lambdas

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This commit is contained in:
Victor Zverovich 2018-02-11 07:05:14 -08:00
parent 78166ccd36
commit 3239c51814
1 changed files with 53 additions and 19 deletions
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72
include/fmt/format.h
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@ -2308,14 +2308,33 @@ class basic_writer {
}
}
struct dec_writer {
unsigned_type abs_value;
unsigned num_digits;
template <typename It>
void operator()(It &&it) const {
it = internal::format_decimal(it, abs_value, num_digits);
}
};
void on_dec() {
unsigned num_digits = internal::count_digits(abs_value);
writer.write_int(num_digits, get_prefix(), spec,
[this, num_digits](auto &&it) {
it = internal::format_decimal(it, abs_value, num_digits);
});
dec_writer{abs_value, num_digits});
}
struct hex_writer {
int_writer &self;
unsigned num_digits;
template <typename It>
void operator()(It &&it) const {
it = internal::format_uint<4>(it, self.abs_value, num_digits,
self.spec.type() != 'x');
}
};
void on_hex() {
if (spec.flag(HASH_FLAG)) {
prefix[prefix_size++] = '0';
@ -2323,12 +2342,20 @@ class basic_writer {
}
unsigned num_digits = count_digits<4>();
writer.write_int(num_digits, get_prefix(), spec,
[this, num_digits](auto &&it) {
it = internal::format_uint<4>(it, abs_value, num_digits,
spec.type() != 'x');
});
hex_writer{*this, num_digits});
}
template <int BITS>
struct bin_writer {
unsigned_type abs_value;
unsigned num_digits;
template <typename It>
void operator()(It &&it) const {
it = internal::format_uint<BITS>(it, abs_value, num_digits);
}
};
void on_bin() {
if (spec.flag(HASH_FLAG)) {
prefix[prefix_size++] = '0';
@ -2336,9 +2363,7 @@ class basic_writer {
}
unsigned num_digits = count_digits<1>();
writer.write_int(num_digits, get_prefix(), spec,
[this, num_digits](auto &&it) {
it = internal::format_uint<1>(it, abs_value, num_digits);
});
bin_writer<1>{abs_value, num_digits});
}
void on_oct() {
@ -2350,21 +2375,30 @@ class basic_writer {
prefix[prefix_size++] = '0';
}
writer.write_int(num_digits, get_prefix(), spec,
[this, num_digits](auto &&it) {
it = internal::format_uint<3>(it, abs_value, num_digits);
});
bin_writer<3>{abs_value, num_digits});
}
enum { SEP_SIZE = 1 };
struct num_writer {
unsigned_type abs_value;
unsigned size;
char_type sep;
template <typename It>
void operator()(It &&it) const {
basic_string_view<char_type> s(&sep, SEP_SIZE);
it = format_decimal(it, abs_value, size,
internal::add_thousands_sep<char_type>(s));
}
};
void on_num() {
unsigned num_digits = internal::count_digits(abs_value);
char_type sep = internal::thousands_sep<char_type>(writer.locale_.get());
enum { SEP_SIZE = 1 };
unsigned size = num_digits + SEP_SIZE * ((num_digits - 1) / 3);
writer.write_int(size, get_prefix(), spec, [this, size, sep](auto &&it) {
basic_string_view<char_type> s(&sep, SEP_SIZE);
it = format_decimal(it, abs_value, size,
internal::add_thousands_sep<char_type>(s));
});
writer.write_int(size, get_prefix(), spec,
num_writer{abs_value, size, sep});
}
void on_error() {