xref: /aoo4110/main/sal/rtl/source/surrogates.h (revision b1cdbd2c)
1*b1cdbd2cSJim Jagielski /**************************************************************
2*b1cdbd2cSJim Jagielski  *
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21*b1cdbd2cSJim Jagielski 
22*b1cdbd2cSJim Jagielski 
23*b1cdbd2cSJim Jagielski 
24*b1cdbd2cSJim Jagielski #ifndef INCLUDED_SAL_RTL_SOURCE_SURROGATES_H
25*b1cdbd2cSJim Jagielski #define INCLUDED_SAL_RTL_SOURCE_SURROGATES_H
26*b1cdbd2cSJim Jagielski 
27*b1cdbd2cSJim Jagielski #include "sal/config.h"
28*b1cdbd2cSJim Jagielski 
29*b1cdbd2cSJim Jagielski #define SAL_RTL_FIRST_HIGH_SURROGATE 0xD800
30*b1cdbd2cSJim Jagielski #define SAL_RTL_LAST_HIGH_SURROGATE 0xDBFF
31*b1cdbd2cSJim Jagielski #define SAL_RTL_FIRST_LOW_SURROGATE 0xDC00
32*b1cdbd2cSJim Jagielski #define SAL_RTL_LAST_LOW_SURROGATE 0xDFFF
33*b1cdbd2cSJim Jagielski 
34*b1cdbd2cSJim Jagielski #define SAL_RTL_IS_HIGH_SURROGATE(utf16) \
35*b1cdbd2cSJim Jagielski     ((utf16) >= SAL_RTL_FIRST_HIGH_SURROGATE && \
36*b1cdbd2cSJim Jagielski      (utf16) <= SAL_RTL_LAST_HIGH_SURROGATE)
37*b1cdbd2cSJim Jagielski 
38*b1cdbd2cSJim Jagielski #define SAL_RTL_IS_LOW_SURROGATE(utf16) \
39*b1cdbd2cSJim Jagielski     ((utf16) >= SAL_RTL_FIRST_LOW_SURROGATE && \
40*b1cdbd2cSJim Jagielski      (utf16) <= SAL_RTL_LAST_LOW_SURROGATE)
41*b1cdbd2cSJim Jagielski 
42*b1cdbd2cSJim Jagielski #define SAL_RTL_COMBINE_SURROGATES(high, low) \
43*b1cdbd2cSJim Jagielski     ((((high) - SAL_RTL_FIRST_HIGH_SURROGATE) << 10) + \
44*b1cdbd2cSJim Jagielski      ((low) - SAL_RTL_FIRST_LOW_SURROGATE) + 0x10000)
45*b1cdbd2cSJim Jagielski 
46*b1cdbd2cSJim Jagielski #endif
47