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Fix handling of empty string_view (#689)

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This commit is contained in:
Victor Zverovich
2018-03-21 09:01:51 -07:00
parent a24005d5fd
commit 8c29459eda
2 changed files with 5 additions and 5 deletions
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7
include/fmt/format.h
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@@ -1399,8 +1399,9 @@ class arg_formatter_base {
}
void write(const char_type *value) {
auto length = value != FMT_NULL ?
std::char_traits<char_type>::length(value) : 0;
if (!value)
FMT_THROW(format_error("string pointer is null"));
auto length = std::char_traits<char_type>::length(value);
writer_.write_str(basic_string_view<char_type>(value, length), specs_);
}
@@ -2647,8 +2648,6 @@ void basic_writer<Range>::write_str(
internal::char_traits<char_type>::convert(Char());
const Char *data = s.data();
std::size_t size = s.size();
if (size == 0 && !data)
FMT_THROW(format_error("string pointer is null"));
std::size_t precision = static_cast<std::size_t>(spec.precision_);
if (spec.precision_ >= 0 && precision < size)
size = precision;