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avoid using nan() in libgu for portability with Android

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kr.angelov
2013-09-04 07:36:39 +00:00
parent 6fa330b49e
commit d2ea52e0ec
1 changed files with 1 additions and 10 deletions
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11
src/runtime/c/gu/bits.c
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@@ -35,16 +35,7 @@ gu_decode_double(uint64_t u)
double ret; double ret;
if (rawexp == 0x7ff) { if (rawexp == 0x7ff) {
if (mantissa == 0) { ret = (mantissa == 0) ? INFINITY : NAN;
ret = INFINITY;
} else {
// At least glibc supports specifying the
// mantissa like this.
int len = snprintf(NULL, 0, "0x%" PRIx64, mantissa);
char buf[len + 1];
snprintf(buf, len + 1, "0x%" PRIx64, mantissa);
ret = nan(buf);
}
} else { } else {
uint64_t m = rawexp ? 1ULL << 52 | mantissa : mantissa << 1; uint64_t m = rawexp ? 1ULL << 52 | mantissa : mantissa << 1;
ret = ldexp((double) m, rawexp - 1075); ret = ldexp((double) m, rawexp - 1075);