// © 2017 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html #include "unicode/utypes.h" #if !UCONFIG_NO_FORMATTING #ifndef __NUMBER_DECNUM_H__ #define __NUMBER_DECNUM_H__ #include "decNumber.h" #include "charstr.h" U_NAMESPACE_BEGIN #define DECNUM_INITIAL_CAPACITY 34 // Export an explicit template instantiation of the MaybeStackHeaderAndArray that is used as a data member of DecNum. // When building DLLs for Windows this is required even though no direct access to the MaybeStackHeaderAndArray leaks out of the i18n library. // (See digitlst.h, pluralaffix.h, datefmt.h, and others for similar examples.) #if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN template class U_I18N_API MaybeStackHeaderAndArray; #endif namespace number { namespace impl { /** A very thin C++ wrapper around decNumber.h */ // Exported as U_I18N_API for tests class U_I18N_API DecNum : public UMemory { public: DecNum(); // leaves object in valid but undefined state // Copy-like constructor; use the default move operators. DecNum(const DecNum& other, UErrorCode& status); /** Sets the decNumber to the StringPiece. */ void setTo(StringPiece str, UErrorCode& status); /** Sets the decNumber to the NUL-terminated char string. */ void setTo(const char* str, UErrorCode& status); /** Uses double_conversion to set this decNumber to the given double. */ void setTo(double d, UErrorCode& status); /** Sets the decNumber to the BCD representation. */ void setTo(const uint8_t* bcd, int32_t length, int32_t scale, bool isNegative, UErrorCode& status); void normalize(); void multiplyBy(const DecNum& rhs, UErrorCode& status); void divideBy(const DecNum& rhs, UErrorCode& status); bool isNegative() const; bool isZero() const; void toString(ByteSink& output, UErrorCode& status) const; inline const decNumber* getRawDecNumber() const { return fData.getAlias(); } private: static constexpr int32_t kDefaultDigits = DECNUM_INITIAL_CAPACITY; MaybeStackHeaderAndArray fData; decContext fContext; void _setTo(const char* str, int32_t maxDigits, UErrorCode& status); }; } // namespace impl } // namespace number U_NAMESPACE_END #endif // __NUMBER_DECNUM_H__ #endif /* #if !UCONFIG_NO_FORMATTING */