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| author | Rich Felker <dalias@aerifal.cx> | 2012-04-10 23:41:54 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-04-10 23:41:54 -0400 |
| commit | 38b3f1fea8fe4f2c590c1a9438d219291a7bfcd2 (patch) | |
| tree | 22a961338661c17966ae76e6f6dc9e150e283951 /src | |
| parent | 633a26c1e69b6a977d16086834f2b937e0378002 (diff) | |
| download | musl-38b3f1fea8fe4f2c590c1a9438d219291a7bfcd2.tar.gz musl-38b3f1fea8fe4f2c590c1a9438d219291a7bfcd2.tar.xz musl-38b3f1fea8fe4f2c590c1a9438d219291a7bfcd2.zip | |
fix float scanning of certain values ending in zeros
for example, "1000000000" was being read as "1" due to this loop exiting early. it's necessary to actually update z and zero the entries so that the subsequent rounding code does not get confused; before i did that, spurious inexact exceptions were being raised.
Diffstat (limited to 'src')
| -rw-r--r-- | src/internal/floatscan.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/internal/floatscan.c b/src/internal/floatscan.c index ed735278..000706d7 100644 --- a/src/internal/floatscan.c +++ b/src/internal/floatscan.c @@ -225,8 +225,10 @@ static long double decfloat(FILE *f, int bits, int emin, int sign, int pok) } } - for (y=i=0; i<LD_B1B_DIG && (a+i & MASK)!=z; i++) + for (y=i=0; i<LD_B1B_DIG; i++) { + if ((a+i & MASK)==z) x[z=(z+1 & MASK)] = 0; y = 1000000000.0L * y + x[a+i & MASK]; + } y *= sign; |