swarm 3.0 Floating point exception for bloom-bits values 2, 3 and 4

[frederic-mahe]

These tests pass with swarm 2.2, but not with swarm 3.0:

scripts/test_options.sh: line 574: 19133 Done                    printf ">s1_3\nAA\n>s2_1\nCC\n"
     19134 Floating point exception| "${SWARM}" -f -y ${y} > /dev/null 2>&1
FAIL: swarm aborts when --bloom-bits equals 2
scripts/test_options.sh: line 574: 19137 Done                    printf ">s1_3\nAA\n>s2_1\nCC\n"
     19138 Floating point exception| "${SWARM}" -f -y ${y} > /dev/null 2>&1
FAIL: swarm aborts when --bloom-bits equals 3
scripts/test_options.sh: line 574: 19141 Done                    printf ">s1_3\nAA\n>s2_1\nCC\n"
     19142 Floating point exception| "${SWARM}" -f -y ${y} > /dev/null 2>&1
FAIL: swarm aborts when --bloom-bits equals 4

just try this command line to replicate the issue:

printf ">s1_3\nAA\n>s2_1\nCC\n" | swarm -f -y 2

[frederic-mahe]

Note: these are the only tests that fail with swarm 3.0.

[torognes]

Should be fixed now in commit 90acfc55344e32c376d7db7608f898e844c51ea1.

The problem appeared when the size of the Bloom filter was less than 64 bits in total. Will now be adjusted up to at least 64 bits.

[frederic-mahe]

Perfect, now swarm 3.0 passes all unit tests. Nice work!