| Index: third_party/WebKit/Source/wtf/dtoa/bignum-dtoa.h
|
| diff --git a/third_party/WebKit/Source/wtf/dtoa/bignum-dtoa.h b/third_party/WebKit/Source/wtf/dtoa/bignum-dtoa.h
|
| index 05a7524b7cea46da139295d2af0951ddcf5512fe..8e9aaa744d4de1f964a8cee724b8616a5ee581a6 100644
|
| --- a/third_party/WebKit/Source/wtf/dtoa/bignum-dtoa.h
|
| +++ b/third_party/WebKit/Source/wtf/dtoa/bignum-dtoa.h
|
| @@ -34,53 +34,57 @@ namespace WTF {
|
|
|
| namespace double_conversion {
|
|
|
| - enum BignumDtoaMode {
|
| - // Return the shortest correct representation.
|
| - // For example the output of 0.299999999999999988897 is (the less accurate but
|
| - // correct) 0.3.
|
| - BIGNUM_DTOA_SHORTEST,
|
| - // Return a fixed number of digits after the decimal point.
|
| - // For instance fixed(0.1, 4) becomes 0.1000
|
| - // If the input number is big, the output will be big.
|
| - BIGNUM_DTOA_FIXED,
|
| - // Return a fixed number of digits, no matter what the exponent is.
|
| - BIGNUM_DTOA_PRECISION
|
| - };
|
| +enum BignumDtoaMode {
|
| + // Return the shortest correct representation.
|
| + // For example the output of 0.299999999999999988897 is (the less accurate but
|
| + // correct) 0.3.
|
| + BIGNUM_DTOA_SHORTEST,
|
| + // Return a fixed number of digits after the decimal point.
|
| + // For instance fixed(0.1, 4) becomes 0.1000
|
| + // If the input number is big, the output will be big.
|
| + BIGNUM_DTOA_FIXED,
|
| + // Return a fixed number of digits, no matter what the exponent is.
|
| + BIGNUM_DTOA_PRECISION
|
| +};
|
|
|
| - // Converts the given double 'v' to ascii.
|
| - // The result should be interpreted as buffer * 10^(point-length).
|
| - // The buffer will be null-terminated.
|
| - //
|
| - // The input v must be > 0 and different from NaN, and Infinity.
|
| - //
|
| - // The output depends on the given mode:
|
| - // - SHORTEST: produce the least amount of digits for which the internal
|
| - // identity requirement is still satisfied. If the digits are printed
|
| - // (together with the correct exponent) then reading this number will give
|
| - // 'v' again. The buffer will choose the representation that is closest to
|
| - // 'v'. If there are two at the same distance, than the number is round up.
|
| - // In this mode the 'requested_digits' parameter is ignored.
|
| - // - FIXED: produces digits necessary to print a given number with
|
| - // 'requested_digits' digits after the decimal point. The produced digits
|
| - // might be too short in which case the caller has to fill the gaps with '0's.
|
| - // Example: toFixed(0.001, 5) is allowed to return buffer="1", point=-2.
|
| - // Halfway cases are rounded up. The call toFixed(0.15, 2) thus returns
|
| - // buffer="2", point=0.
|
| - // Note: the length of the returned buffer has no meaning wrt the significance
|
| - // of its digits. That is, just because it contains '0's does not mean that
|
| - // any other digit would not satisfy the internal identity requirement.
|
| - // - PRECISION: produces 'requested_digits' where the first digit is not '0'.
|
| - // Even though the length of produced digits usually equals
|
| - // 'requested_digits', the function is allowed to return fewer digits, in
|
| - // which case the caller has to fill the missing digits with '0's.
|
| - // Halfway cases are again rounded up.
|
| - // 'BignumDtoa' expects the given buffer to be big enough to hold all digits
|
| - // and a terminating null-character.
|
| - void BignumDtoa(double v, BignumDtoaMode mode, int requested_digits,
|
| - Vector<char> buffer, int* length, int* point);
|
| +// Converts the given double 'v' to ascii.
|
| +// The result should be interpreted as buffer * 10^(point-length).
|
| +// The buffer will be null-terminated.
|
| +//
|
| +// The input v must be > 0 and different from NaN, and Infinity.
|
| +//
|
| +// The output depends on the given mode:
|
| +// - SHORTEST: produce the least amount of digits for which the internal
|
| +// identity requirement is still satisfied. If the digits are printed
|
| +// (together with the correct exponent) then reading this number will give
|
| +// 'v' again. The buffer will choose the representation that is closest to
|
| +// 'v'. If there are two at the same distance, than the number is round up.
|
| +// In this mode the 'requested_digits' parameter is ignored.
|
| +// - FIXED: produces digits necessary to print a given number with
|
| +// 'requested_digits' digits after the decimal point. The produced digits
|
| +// might be too short in which case the caller has to fill the gaps with '0's.
|
| +// Example: toFixed(0.001, 5) is allowed to return buffer="1", point=-2.
|
| +// Halfway cases are rounded up. The call toFixed(0.15, 2) thus returns
|
| +// buffer="2", point=0.
|
| +// Note: the length of the returned buffer has no meaning wrt the significance
|
| +// of its digits. That is, just because it contains '0's does not mean that
|
| +// any other digit would not satisfy the internal identity requirement.
|
| +// - PRECISION: produces 'requested_digits' where the first digit is not '0'.
|
| +// Even though the length of produced digits usually equals
|
| +// 'requested_digits', the function is allowed to return fewer digits, in
|
| +// which case the caller has to fill the missing digits with '0's.
|
| +// Halfway cases are again rounded up.
|
| +// 'BignumDtoa' expects the given buffer to be big enough to hold all digits
|
| +// and a terminating null-character.
|
| +void BignumDtoa(double v,
|
| + BignumDtoaMode mode,
|
| + int requested_digits,
|
| + Vector<char> buffer,
|
| + int* length,
|
| + int* point);
|
|
|
| } // namespace double_conversion
|
|
|
| -} // namespace WTF
|
| +} // namespace WTF
|
|
|
| #endif // DOUBLE_CONVERSION_BIGNUM_DTOA_H_
|
|
|