ICU-59117.0.1.tar.gz

[apple/icu.git] / icuSources / common / uprops.h

diff --git a/icuSources/common/uprops.h b/icuSources/common/uprops.h
index d45fc6c79b433fb2848970162018aa0357675add..f5d69fe79cf42a6a100c3c9bea497950421b4b88 100644 (file)
--- a/icuSources/common/uprops.h
+++ b/icuSources/common/uprops.h
@@ -1,3 +1,5 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
 /*
 *******************************************************************************
 *
@@ -6,7 +8,7 @@
 *
 *******************************************************************************
 *   file name:  uprops.h
-*   encoding:   US-ASCII
+*   encoding:   UTF-8
 *   tab size:   8 (not used)
 *   indentation:4
 *
@@ -86,8 +88,15 @@ enum {
      * ((ntv>>2)-0xbf) * 60^((ntv&3)+1) = (1..9)*(60^1..60^4)
      */
     UPROPS_NTV_BASE60_START=0x300,
+    /**
+     * Fraction-20 values:
+     * frac20 = ntv-0x324 = 0..0x17 -> 1|3|5|7 / 20|40|80|160|320|640
+     * numerator: num = 2*(frac20&3)+1
+     * denominator: den = 20<<(frac20>>2)
+     */
+    UPROPS_NTV_FRACTION20_START=UPROPS_NTV_BASE60_START+36,  // 0x300+9*4=0x324
     /** No numeric value (yet). */
-    UPROPS_NTV_RESERVED_START=UPROPS_NTV_BASE60_START+36,  /* 0x300+9*4=0x324 */
+    UPROPS_NTV_RESERVED_START=UPROPS_NTV_FRACTION20_START+24,  // 0x324+6*4=0x34c
 
     UPROPS_NTV_MAX_SMALL_INT=UPROPS_NTV_FRACTION_START-UPROPS_NTV_NUMERIC_START-1
 };