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icu/icu-avoid-x87-excess-precision.diff

18 lines
709 B
Diff

---
source/i18n/precision.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: icu/source/i18n/precision.cpp
===================================================================
--- icu.orig/source/i18n/precision.cpp
+++ icu/source/i18n/precision.cpp
@@ -227,7 +227,7 @@ FixedPrecision::initVisibleDigits(
}
// Try to find n such that value * 10^n is an integer
int32_t n = -1;
- double scaled;
+ volatile double scaled; // make sure scaled is in memory to avoid excess precision with x87 math
for (int32_t i = 0; i < UPRV_LENGTHOF(gPower10); ++i) {
scaled = value * gPower10[i];
if (scaled > MAX_INT64_IN_DOUBLE || scaled < -MAX_INT64_IN_DOUBLE) {