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| author | Damien George <damien.p.george@gmail.com> | 2014-04-14 19:33:23 +0100 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2014-04-14 19:33:23 +0100 |
| commit | ad8abd1a9503b61c578881192dd88b7e0f97c8cf (patch) | |
| tree | 118d3ff15aca1da127238434b56e646f869e26b6 /py/qstr.c | |
| parent | 48a9b3fd1107853aacb4610bf2c40197bea7ba93 (diff) | |
| parent | 5904dad842a40a61a9ee588a66a32b38ca434a41 (diff) | |
| download | micropython-ad8abd1a9503b61c578881192dd88b7e0f97c8cf.tar.gz micropython-ad8abd1a9503b61c578881192dd88b7e0f97c8cf.zip | |
Merge branch 'master' of github.com:micropython/micropython
Diffstat (limited to 'py/qstr.c')
| -rw-r--r-- | py/qstr.c | 7 |
1 files changed, 6 insertions, 1 deletions
@@ -35,7 +35,12 @@ machine_uint_t qstr_compute_hash(const byte *data, uint len) { for (const byte *top = data + len; data < top; data++) { hash = ((hash << 5) + hash) ^ (*data); // hash * 33 ^ data } - return hash & 0xffff; + hash &= 0xffff; + // Make sure that valid hash is never zero, zero means "hash not computed" + if (hash == 0) { + hash++; + } + return hash; } typedef struct _qstr_pool_t { |