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vitaut 2015-07-31 08:05:25 -07:00
parent fabd3a84c5
commit b022790f3b
1 changed files with 27 additions and 3 deletions
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30
format.h
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@ -1867,6 +1867,27 @@ class BasicWriter {
return internal::make_ptr(&buffer_[size], n);
}
// Writes an unsigned decimal integer.
template <typename UInt>
Char *write_unsigned_decimal(UInt value, unsigned prefix_size = 0) {
unsigned num_digits = internal::count_digits(value);
Char *ptr = get(grow_buffer(prefix_size + num_digits));
internal::format_decimal(ptr + prefix_size, value, num_digits);
return ptr;
}
// Writes a decimal integer.
template <typename Int>
void write_decimal(Int value) {
typename internal::IntTraits<Int>::MainType abs_value = value;
if (internal::is_negative(value)) {
abs_value = 0 - abs_value;
*write_unsigned_decimal(abs_value, 1) = '-';
} else {
write_unsigned_decimal(abs_value, 0);
}
}
// Prepare a buffer for integer formatting.
CharPtr prepare_int_buffer(unsigned num_digits,
const EmptySpec &, const char *prefix, unsigned prefix_size) {
@ -1995,19 +2016,22 @@ class BasicWriter {
FMT_VARIADIC_VOID(write, BasicCStringRef<Char>)
BasicWriter &operator<<(int value) {
return *this << IntFormatSpec<int>(value);
write_decimal(value);
return *this;
}
BasicWriter &operator<<(unsigned value) {
return *this << IntFormatSpec<unsigned>(value);
}
BasicWriter &operator<<(long value) {
return *this << IntFormatSpec<long>(value);
write_decimal(value);
return *this;
}
BasicWriter &operator<<(unsigned long value) {
return *this << IntFormatSpec<unsigned long>(value);
}
BasicWriter &operator<<(LongLong value) {
return *this << IntFormatSpec<LongLong>(value);
write_decimal(value);
return *this;
}
/**