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Improve %f formatting for inf and nan

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This commit is contained in:
Marcus Elg
2022-08-25 07:47:03 +02:00
parent 8388ea1d6b
commit e9cbe9517b
2 changed files with 13 additions and 2 deletions
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7
core/ustring.cpp
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@ -4339,15 +4339,18 @@ String String::sprintf(const Array &values, bool *error) const {
double value = values[value_index];
bool is_negative = (value < 0);
String str = String::num(ABS(value), min_decimals);
bool not_numeric = isinf(value) || isnan(value);
// Pad decimals out.
str = str.pad_decimals(min_decimals);
if (!not_numeric) {
str = str.pad_decimals(min_decimals);
}
int initial_len = str.length();
// Padding. Leave room for sign later if required.
int pad_chars_count = (is_negative || show_sign) ? min_chars - 1 : min_chars;
String pad_char = pad_with_zeros ? String("0") : String(" ");
String pad_char = (pad_with_zeros && !not_numeric) ? String("0") : String(" "); // Never pad NaN or inf with zeros
if (left_justified) {
str = str.rpad(pad_chars_count, pad_char);
} else {