gentoo-overlay/dev-libs/icu/files/icu-4.8.1-fix_nan.patch

https://bugs.gentoo.org/show_bug.cgi?id=380827
http://bugs.icu-project.org/trac/ticket/8561
http://bugs.icu-project.org/trac/changeset/30689
http://code.google.com/p/chromium/issues/detail?id=92847

--- source/i18n/digitlst.cpp.orig	2011-07-19 23:16:00.000000000 +0200
+++ source/i18n/digitlst.cpp	2011-10-12 23:47:08.000000000 +0200
@@ -60,6 +60,18 @@
 
 U_NAMESPACE_BEGIN
 
+static void
+loadDecimalChar() {
+    if (gDecimal == 0) {
+        char rep[MAX_DIGITS];
+        // For machines that decide to change the decimal on you,
+        // and try to be too smart with localization.
+        // This normally should be just a '.'.
+        sprintf(rep, "%+1.1f", 1.0);
+        gDecimal = rep[2];
+    }
+}
+
 // -------------------------------------
 // default constructor
 
@@ -408,15 +420,6 @@
     }
     DigitList *nonConstThis = const_cast<DigitList *>(this);
 
-    if (gDecimal == 0) {
-        char rep[MAX_DIGITS];
-        // For machines that decide to change the decimal on you,
-        // and try to be too smart with localization.
-        // This normally should be just a '.'.
-        sprintf(rep, "%+1.1f", 1.0);
-        gDecimal = rep[2];
-    }
-
     if (isZero()) {
         nonConstThis->fDouble = 0.0;
         if (decNumberIsNegative(fDecNumber)) {
@@ -451,6 +454,7 @@
         }
         U_ASSERT(uprv_strlen(&s[0]) < MAX_DBL_DIGITS+18);
         
+        loadDecimalChar();
         if (gDecimal != '.') {
             char *decimalPt = strchr(s, '.');
             if (decimalPt != NULL) {
@@ -741,6 +745,17 @@
     sprintf(rep, "%+1.*e", MAX_DBL_DIGITS - 1, source);
     U_ASSERT(uprv_strlen(rep) < sizeof(rep));
 
+    // uprv_decNumberFromString() will parse the string expecting '.' as a
+    // decimal separator, however sprintf() can use ',' in certain locales.
+    // Overwrite a different decimal separator with '.' here before proceeding.
+    loadDecimalChar();
+    if (gDecimal != '.') {
+        char *decimalPt = strchr(rep, gDecimal);
+        if (decimalPt != NULL) {
+            *decimalPt = '.';
+        }
+    }
+
     // Create a decNumber from the string.
     uprv_decNumberFromString(fDecNumber, rep, &fContext);
     uprv_decNumberTrim(fDecNumber);