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Wrap Char in array to avoid pointer arithmetic #3695

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Oct 31, 2023
Merged

Wrap Char in array to avoid pointer arithmetic #3695

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3 changes: 2 additions & 1 deletion include/fmt/format.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1958,11 +1958,12 @@ auto write_escaped_string(OutputIt out, basic_string_view<Char> str)

template <typename Char, typename OutputIt>
auto write_escaped_char(OutputIt out, Char v) -> OutputIt {
Char v_array[1] = {v};
*out++ = static_cast<Char>('\'');
if ((needs_escape(static_cast<uint32_t>(v)) && v != static_cast<Char>('"')) ||
v == static_cast<Char>('\'')) {
out = write_escaped_cp(
out, find_escape_result<Char>{&v, &v + 1, static_cast<uint32_t>(v)});
out, find_escape_result<Char>{v_array, v_array + 1, static_cast<uint32_t>(v)});
} else {
*out++ = v;
}
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