sky/engine/wtf/dtoa/fixed-dtoa.h

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#ifndef SKY_ENGINE_WTF_DTOA_FIXED_DTOA_H_
#define SKY_ENGINE_WTF_DTOA_FIXED_DTOA_H_

#include "sky/engine/wtf/dtoa/utils.h"

namespace WTF {

namespace double_conversion {

    // Produces digits necessary to print a given number with
    // 'fractional_count' digits after the decimal point.
    // The buffer must be big enough to hold the result plus one terminating null
    // character.
    //
    // The produced digits might be too short in which case the caller has to fill
    // the gaps with '0's.
    // Example: FastFixedDtoa(0.001, 5, ...) is allowed to return buffer = "1", and
    // decimal_point = -2.
    // Halfway cases are rounded towards +/-Infinity (away from 0). The call
    // FastFixedDtoa(0.15, 2, ...) thus returns buffer = "2", decimal_point = 0.
    // The returned buffer may contain digits that would be truncated from the
    // shortest representation of the input.
    //
    // This method only works for some parameters. If it can't handle the input it
    // returns false. The output is null-terminated when the function succeeds.
    bool FastFixedDtoa(double v, int fractional_count,
                       Vector<char> buffer, int* length, int* decimal_point);

}  // namespace double_conversion

} // namespace WTF

#endif  // SKY_ENGINE_WTF_DTOA_FIXED_DTOA_H_