icuSources/i18n/number_utypes.h

   1 // © 2018 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3
   4 #include "unicode/utypes.h"
   5
   6 #if !UCONFIG_NO_FORMATTING
   7 #ifndef __SOURCE_NUMBER_UTYPES_H__
   8 #define __SOURCE_NUMBER_UTYPES_H__
   9
  10 #include "unicode/numberformatter.h"
  11 #include "number_types.h"
  12 #include "number_decimalquantity.h"
  13 #include "number_stringbuilder.h"
  14
  15 U_NAMESPACE_BEGIN namespace number {
  16 namespace impl {
  17
  18
  19 /**
  20  * Implementation class for UNumberFormatter with a magic number for safety.
  21  *
  22  * Wraps a LocalizedNumberFormatter by value.
  23  */
  24 struct UNumberFormatterData : public UMemory {
  25     // The magic number to identify incoming objects.
  26     // Reads in ASCII as "NFR" (NumberFormatteR with room at the end)
  27     static constexpr int32_t kMagic = 0x4E465200;
  28
  29     // Data members:
  30     int32_t fMagic = kMagic;
  31     LocalizedNumberFormatter fFormatter;
  32
  33     /** Convert from UNumberFormatter -> UNumberFormatterData. */
  34     static UNumberFormatterData* validate(UNumberFormatter* input, UErrorCode& status);
  35
  36     /** Convert from UNumberFormatter -> UNumberFormatterData (const version). */
  37     static const UNumberFormatterData* validate(const UNumberFormatter* input, UErrorCode& status);
  38
  39     /** Convert from UNumberFormatterData -> UNumberFormatter. */
  40     UNumberFormatter* exportForC();
  41 };
  42
  43
  44 /**
  45  * Implementation class for UFormattedNumber with magic number for safety.
  46  *
  47  * This struct is also held internally by the C++ version FormattedNumber since the member types are not
  48  * declared in the public header file.
  49  *
  50  * The DecimalQuantity is not currently being used by FormattedNumber, but at some point it could be used
  51  * to add a toDecNumber() or similar method.
  52  */
  53 struct UFormattedNumberData : public UMemory {
  54     // The magic number to identify incoming objects.
  55     // Reads in ASCII as "FDN" (FormatteDNumber with room at the end)
  56     static constexpr int32_t kMagic = 0x46444E00;
  57
  58     // Data members:
  59     int32_t fMagic = kMagic;
  60     DecimalQuantity quantity;
  61     NumberStringBuilder string;
  62
  63     /** Convert from UFormattedNumber -> UFormattedNumberData. */
  64     static UFormattedNumberData* validate(UFormattedNumber* input, UErrorCode& status);
  65
  66     /** Convert from UFormattedNumber -> UFormattedNumberData (const version). */
  67     static const UFormattedNumberData* validate(const UFormattedNumber* input, UErrorCode& status);
  68
  69     /** Convert from UFormattedNumberData -> UFormattedNumber. */
  70     UFormattedNumber* exportForC();
  71 };
  72
  73
  74 } // namespace impl
  75 } // namespace number
  76 U_NAMESPACE_END
  77
  78 #endif //__SOURCE_NUMBER_UTYPES_H__
  79 #endif /* #if !UCONFIG_NO_FORMATTING */