Merge pull request #64870 from MarcusElg/naninfprinting3.x

[3.x] Improve string formatting (%f) for inf and nan
This commit is contained in:
Rémi Verschelde
2022-10-03 13:57:30 +02:00
2 changed files with 13 additions and 2 deletions

View File

@@ -4341,15 +4341,18 @@ 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 {