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Fix hexfloat buffer reallocation

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Victor Zverovich
2019-11-25 14:57:11 -08:00
parent 99b6e928d4
commit d19ed6716d
2 changed files with 16 additions and 2 deletions
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4
include/fmt/format-inl.h
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@@ -1153,13 +1153,13 @@ int snprintf_float(T value, int precision, float_spec spec, buffer<char>& buf) {
? snprintf_ptr(begin, capacity, format, precision, value)
: snprintf_ptr(begin, capacity, format, value);
if (result < 0) {
buf.reserve(capacity + 1); // The buffer will grow exponentially.
buf.reserve(buf.capacity() + 1); // The buffer will grow exponentially.
continue;
}
unsigned size = to_unsigned(result);
// Size equal to capacity means that the last character was truncated.
if (size >= capacity) {
buf.reserve(size + 1); // Add 1 for the terminating '\0'.
buf.reserve(size + offset + 1); // Add 1 for the terminating '\0'.
continue;
}
auto is_digit = [](char c) { return c >= '0' && c <= '9'; };