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| author | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2019-03-19 10:53:18 -0300 |
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| committer | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2019-03-19 10:53:18 -0300 |
| commit | 9b37a4695ebf50b37b5b4fb279ae948f23b5b6a0 (patch) | |
| tree | 2a6b0f6c1c2eb962bb383175eb0a67ea81a4564d /lprefix.h | |
| parent | 1e0c73d5b643707335b06abd2546a83d9439d14c (diff) | |
| download | lua-9b37a4695ebf50b37b5b4fb279ae948f23b5b6a0.tar.gz lua-9b37a4695ebf50b37b5b4fb279ae948f23b5b6a0.tar.bz2 lua-9b37a4695ebf50b37b5b4fb279ae948f23b5b6a0.zip | |
New semantics for the integer 'for' loop
The numerical 'for' loop over integers now uses a precomputed counter
to control its number of iteractions. This change eliminates several
weird cases caused by overflows (wrap-around) in the control variable.
(It also ensures that every integer loop halts.)
Also, the special opcodes for the usual case of step==1 were removed.
(The new code is already somewhat complex for the usual case,
but efficient.)
Diffstat (limited to 'lprefix.h')
0 files changed, 0 insertions, 0 deletions