Replace the hand-written parser in calc.c with a tree-sitter grammar
(subprojects/rizin-math-parser) and a typed evaluator. The old parser
could only ever produce a ut64 and folded anything it failed to read to
0, which left callers unable to tell a failed expression from one that
evaluated to zero.
Expressions now evaluate to an RzNumValue, a tagged union over ut64,
double, RzBitVector, arbitrary-precision integer and arbitrary-precision
decimal, carrying an RzNumError rather than signalling failure as 0.
Literals keep the width they were written with (5u8, 0xffu128, any width
from 1 to 65536), results that outgrow 64 bits promote to a big number on
their own, and a parse error, division by zero or unresolved identifier
reaches the caller.
rz_num_math() is deprecated. rz_num_math_ut64() keeps its exact behaviour
for callers that want a ut64, and rz_num_math_value() exposes the typed
result. rz_core_math() adds the RzCore-backed form used by the % command,
with rz_core_math_ut64() deprecated alongside it. rz-ax routes through the
typed API, so it prints values at full precision, reports errors on stderr
and exits non-zero. rz_il_lift_num() converts an expression to an
RzILOpPure, so a numeric argument can be lifted instead of pre-evaluated.
Legacy input still works: trailing base suffixes (101b, 35o, 212t), the
trailing-'h' hex form and the k/m/g scale suffixes are all accepted and
warn once, pointing at the 0b/0o/0t prefixes. doc/math.md documents the
language and doc/math-il-lift.md the lift; the grammar, the evaluator,
rz-ax and the % command are covered by unit and db tests.
* Add benchmark for rz_bv_copy_nbits
* Improve performance for large to large and small to small bitvector copy
* Fix bug with nbit=64 and simplify code
* Add test for same bitvector copy
* Move bit copy logic to separate function in rz_bits.h + improve comments
* Support same vector copy for unaligned case
* Expect non-null RzTable in bench utils and add comments
* Test against reference implementation instead of hardcoded values
* Add function to memcpy memory with offset.
* Add count trailing zeros function.
* Add function to determine pointer alignment.
* Add helper to swap sequences of 2 bytes.
* Add helper to swap sequences of 4 bytes.
* Print pointer in warning
* Fix tests
* Use uintptr_t type to prevent undefined behavior.
* Remove alignment requirement and rely on malloc promises.
* Add in place byte swap functions.
* Move the endianness swapping into util/rz_endian
* Use GNU builtin __builtin_ctzll/clzll.
Also fixes the include guards of __builtin_clzll
and handles the undefined case of x == 0 of it.
* Add doxygen
