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GeezerVison is showing github.com — [2.7] bpo-34400: Fix more undefined behavior in parsetok.c (GH-8833).… · python/cpython@eb9a1c0

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- parsetok.c

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`‎Parser/parsetok.c‎`

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+4-2Lines changed: 4 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -189,10 +189,12 @@ parsetok(struct tok_state tok, grammar g, int start, perrdetail *err_ret,`
`189`	`189`
`190`	`190`	`#ifdef PY_PARSER_REQUIRES_FUTURE_KEYWORD`
`191`	`191`	`#endif`
`192`		`- if (a >= tok->line_start)`
	`192`	`+ if (a != NULL && a >= tok->line_start) {`
`193`	`193`	`col_offset = a - tok->line_start;`
`194`		`- else`
	`194`	`+ }`
	`195`	`+ else {`
`195`	`196`	`col_offset = -1;`
	`197`	`+ }`
`196`	`198`
`197`	`199`	`if ((err_ret->error =`
`198`	`200`	`PyParser_AddToken(ps, (int)type, str, tok->lineno, col_offset,`

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