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bison: check for int overflow when scanning

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* src/scan-gram.l: Include errno.h, for errno.
(scan_integer, handle_syncline): Check for integer overflow.
* tests/input.at (too-large.y): Adjust to match new diagnostics.
This commit is contained in:
Paul Eggert
2019-10-17 11:33:54 -07:00
parent 15c1b913cf
commit 052215a138
2 changed files with 8 additions and 2 deletions
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tests/input.at
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@@ -1523,7 +1523,9 @@ start: TOO_LARGE_DEC TOO_LARGE_HEX
AT_BISON_CHECK([too-large.y], [1], [],
[[too-large.y:9.22-42: error: integer out of range: '999999999999999999999'
too-large.y:9.22-42: error: user token number of TOO_LARGE_DEC too large
too-large.y:10.24-44: error: integer out of range: '0xFFFFFFFFFFFFFFFFFFF'
too-large.y:10.24-44: error: user token number of TOO_LARGE_HEX too large
]])
AT_BISON_OPTION_POPDEFS