diff options
Diffstat (limited to 'src/3rdparty/double-conversion/double-conversion/double-to-string.h')
| -rw-r--r-- | src/3rdparty/double-conversion/double-conversion/double-to-string.h | 35 |
1 files changed, 30 insertions, 5 deletions
diff --git a/src/3rdparty/double-conversion/double-conversion/double-to-string.h b/src/3rdparty/double-conversion/double-conversion/double-to-string.h index 6317a08a72..abe60e8810 100644 --- a/src/3rdparty/double-conversion/double-conversion/double-to-string.h +++ b/src/3rdparty/double-conversion/double-conversion/double-to-string.h @@ -38,7 +38,7 @@ class DoubleToStringConverter { // or a requested_digits parameter > kMaxFixedDigitsAfterPoint then the // function returns false. static const int kMaxFixedDigitsBeforePoint = 60; - static const int kMaxFixedDigitsAfterPoint = 60; + static const int kMaxFixedDigitsAfterPoint = 100; // When calling ToExponential with a requested_digits // parameter > kMaxExponentialDigits then the function returns false. @@ -78,7 +78,9 @@ class DoubleToStringConverter { EMIT_TRAILING_DECIMAL_POINT = 2, EMIT_TRAILING_ZERO_AFTER_POINT = 4, UNIQUE_ZERO = 8, - NO_TRAILING_ZERO = 16 + NO_TRAILING_ZERO = 16, + EMIT_TRAILING_DECIMAL_POINT_IN_EXPONENTIAL = 32, + EMIT_TRAILING_ZERO_AFTER_POINT_IN_EXPONENTIAL = 64 }; // Flags should be a bit-or combination of the possible Flags-enum. @@ -97,6 +99,13 @@ class DoubleToStringConverter { // of the result in precision mode. Matches printf's %g. // When EMIT_TRAILING_ZERO_AFTER_POINT is also given, one trailing zero is // preserved. + // - EMIT_TRAILING_DECIMAL_POINT_IN_EXPONENTIAL: when the input number has + // exactly one significant digit and is converted into exponent form then a + // trailing decimal point is appended to the significand in shortest mode + // or in precision mode with one requested digit. + // - EMIT_TRAILING_ZERO_AFTER_POINT_IN_EXPONENTIAL: in addition to a trailing + // decimal point emits a trailing '0'-character. This flag requires the + // EMIT_TRAILING_DECIMAL_POINT_IN_EXPONENTIAL flag. // // Infinity symbol and nan_symbol provide the string representation for these // special values. If the string is NULL and the special value is encountered @@ -123,7 +132,7 @@ class DoubleToStringConverter { // Example with max_leading_padding_zeroes_in_precision_mode = 6. // ToPrecision(0.0000012345, 2) -> "0.0000012" // ToPrecision(0.00000012345, 2) -> "1.2e-7" - // Similarily the converter may add up to + // Similarly the converter may add up to // max_trailing_padding_zeroes_in_precision_mode in precision mode to avoid // returning an exponential representation. A zero added by the // EMIT_TRAILING_ZERO_AFTER_POINT flag is counted for this limit. @@ -132,6 +141,22 @@ class DoubleToStringConverter { // ToPrecision(230.0, 2) -> "230." with EMIT_TRAILING_DECIMAL_POINT. // ToPrecision(230.0, 2) -> "2.3e2" with EMIT_TRAILING_ZERO_AFTER_POINT. // + // When converting numbers with exactly one significant digit to exponent + // form in shortest mode or in precision mode with one requested digit, the + // EMIT_TRAILING_DECIMAL_POINT and EMIT_TRAILING_ZERO_AFTER_POINT flags have + // no effect. Use the EMIT_TRAILING_DECIMAL_POINT_IN_EXPONENTIAL flag to + // append a decimal point in this case and the + // EMIT_TRAILING_ZERO_AFTER_POINT_IN_EXPONENTIAL flag to also append a + // '0'-character in this case. + // Example with decimal_in_shortest_low = 0: + // ToShortest(0.0009) -> "9e-4" + // with EMIT_TRAILING_DECIMAL_POINT_IN_EXPONENTIAL deactivated. + // ToShortest(0.0009) -> "9.e-4" + // with EMIT_TRAILING_DECIMAL_POINT_IN_EXPONENTIAL activated. + // ToShortest(0.0009) -> "9.0e-4" + // with EMIT_TRAILING_DECIMAL_POINT_IN_EXPONENTIAL activated and + // EMIT_TRAILING_ZERO_AFTER_POINT_IN_EXPONENTIAL activated. + // // The min_exponent_width is used for exponential representations. // The converter adds leading '0's to the exponent until the exponent // is at least min_exponent_width digits long. @@ -181,7 +206,7 @@ class DoubleToStringConverter { // Example with decimal_in_shortest_low = -6, // decimal_in_shortest_high = 21, // EMIT_POSITIVE_EXPONENT_SIGN activated, and - // EMIT_TRAILING_DECIMAL_POINT deactived: + // EMIT_TRAILING_DECIMAL_POINT deactivated: // ToShortest(0.000001) -> "0.000001" // ToShortest(0.0000001) -> "1e-7" // ToShortest(111111111111111111111.0) -> "111111111111111110000" @@ -305,7 +330,7 @@ class DoubleToStringConverter { // Example with max_leading_padding_zeroes_in_precision_mode = 6. // ToPrecision(0.0000012345, 2) -> "0.0000012" // ToPrecision(0.00000012345, 2) -> "1.2e-7" - // Similarily the converter may add up to + // Similarly the converter may add up to // max_trailing_padding_zeroes_in_precision_mode in precision mode to avoid // returning an exponential representation. A zero added by the // EMIT_TRAILING_ZERO_AFTER_POINT flag is counted for this limit. |