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STRSUB and CHARSUB allow zero or negative positions

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These are offsets from the end of the string, as if the
STRLEN or CHARLEN respectively were added to the position.

Fixes #812
This commit is contained in:
Rangi
2021-04-18 21:40:38 -04:00
committed by Eldred Habert
parent 459773b3f0
commit b1e6c73197
6 changed files with 35 additions and 23 deletions
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16
test/asm/strsub.err
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@@ -1,14 +1,14 @@
warning: strsub.asm(12) -> strsub.asm::xstrsub(4): [-Wbuiltin-args]
warning: strsub.asm(15) -> strsub.asm::xstrsub(4): [-Wbuiltin-args]
STRSUB: Length too big: 32
warning: strsub.asm(13) -> strsub.asm::xstrsub(4): [-Wbuiltin-args]
warning: strsub.asm(16) -> strsub.asm::xstrsub(4): [-Wbuiltin-args]
STRSUB: Length too big: 300
warning: strsub.asm(14) -> strsub.asm::xstrsub(4): [-Wbuiltin-args]
warning: strsub.asm(17) -> strsub.asm::xstrsub(4): [-Wbuiltin-args]
STRSUB: Position starts at 1
warning: strsub.asm(14) -> strsub.asm::xstrsub(4): [-Wbuiltin-args]
warning: strsub.asm(17) -> strsub.asm::xstrsub(4): [-Wbuiltin-args]
STRSUB: Length too big: 300
warning: strsub.asm(16) -> strsub.asm::xstrsub(4): [-Wbuiltin-args]
STRSUB: Position 4 is past the end of the string
warning: strsub.asm(16) -> strsub.asm::xstrsub(4): [-Wbuiltin-args]
STRSUB: Length too big: 1
warning: strsub.asm(19) -> strsub.asm::xstrsub(4): [-Wbuiltin-args]
STRSUB: Position 4 is past the end of the string
warning: strsub.asm(19) -> strsub.asm::xstrsub(4): [-Wbuiltin-args]
STRSUB: Length too big: 1
warning: strsub.asm(22) -> strsub.asm::xstrsub(4): [-Wbuiltin-args]
STRSUB: Length too big: 10