4e469085c1
py/objstr: Protect against creating bytes(n) with n negative.
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Prior to this patch uPy (on a 32-bit arch) would have severe issues when
calling bytes(-1): such a call would call vstr_init_len(vstr, -1) which
would then +1 on the len and call vstr_init(vstr, 0), which would then
round this up and allocate a small amount of memory for the vstr. The
bytes constructor would then attempt to zero out all this memory, thinking
it had allocated 2^32-1 bytes.
2018-02-19 16:25:30 +11:00
dfa563c71f
py/objstr: Make empty bytes object have a null-terminating byte.
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Because a lot of string processing functions assume there is a null
terminating byte, so they can work in an efficient way.
Fixes issue #3334 .
2017-10-04 17:59:22 +11:00
97abe22963
tests: Add tests to exercise lexer; and some more complex number tests.
2015-04-04 23:16:22 +01:00
26a9975fba
tests: Add some more tests for bytes, bignum, string and ujson.
2015-03-14 21:20:58 +00:00
57aebe1714
tests: Add testcase for bytes() on values in range 128-255.
2015-01-28 22:29:51 +02:00
96e20c600f
tests: Fix uctypes tests to run on 64bit arch; enable more native tests.
2014-09-23 14:15:45 +00:00
9749b2fb0d
objstr: Make sure that bytes are indexed as bytes, not as unicode.
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Fixes #795 .
2014-08-11 22:38:00 +03:00
1ecea7c753
py: Make 'bytes' be a proper type, support standard constructor args.
2014-03-22 00:07:04 +02:00
91fb1c9b13
Add basic implementation of bytes type, piggybacking on str.
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This reuses as much str implementation as possible, from this we
can make them more separate as needed.
2014-01-24 22:56:26 +02:00
Damien George
Paul Sokolovsky