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style: make item_index a truly different type from item_number

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See previous commit.

* src/gram.h (item_index): Make it unsigned.
Fix remaiming issues.
This commit is contained in:
Akim Demaille
2020-05-25 07:34:11 +02:00
parent 6a1a681fd2
commit 518dc6ca26
5 changed files with 10 additions and 9 deletions
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7
src/gram.h
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@@ -111,14 +111,15 @@ extern int nsyms;
extern int ntokens;
extern int nvars;
/* elements of ritem */
/* Elements of ritem. */
typedef int item_number;
/* indices into ritem */
typedef int item_index;
# define ITEM_NUMBER_MAX INT_MAX
extern item_number *ritem;
extern int nritems;
/* Indices into ritem. */
typedef unsigned int item_index;
/* There is weird relationship between OT1H item_number and OTOH
symbol_number and rule_number: we store the latter in
item_number. symbol_number values are stored as-is, while