From 1399934a24fb418f7f753e7578ac65f3fd5f3654 Mon Sep 17 00:00:00 2001
From: Danila Fedorin <danila.fedorin@gmail.com>
Date: Thu, 20 Jul 2017 21:46:39 -0700
Subject: [PATCH] Switch indices in strings to size_t.

---
 include/eval.h | 13 +++++++------
 src/eval.c     |  4 ++--
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/include/eval.h b/include/eval.h
index 2a4d6b6..31d9bc9 100644
--- a/include/eval.h
+++ b/include/eval.h
@@ -1,6 +1,7 @@
 #ifndef LIBLEX_EVAL_H
 #define LIBLEX_EVAL_H
 
+#include <stddef.h>
 #include "pattern.h"
 #include "pairmap.h"
 #include "ll.h"
@@ -11,8 +12,8 @@
  * are used to represent "matched" hypohteses.
  */
 struct match_s {
-  int from;
-  int to;
+  size_t from;
+  size_t to;
   int pattern;
 };
 
@@ -28,11 +29,11 @@ struct eval_s {
   /**
    * The current index in the input.
    */
-  int index;
+  size_t index;
   /**
    * The index where the valuation began.
    */
-  int begin;
+  size_t begin;
   /**
    * The number of nodes / states matched in
    * the last iteration.
@@ -104,7 +105,7 @@ liblex_result eval_config_add(eval_config* config, char* pattern, int pattern_id
  * @param match pointer to where to store the newly created match.
  * @return LIBLEX_SUCCESS if all goes well, or LIBLEX_MALLOC if there was an allocation failure.
  */
-liblex_result eval_word(char* string, int index, eval_config* config, match* match);
+liblex_result eval_word(char* string, size_t index, eval_config* config, match* match);
 /**
  * Evaluates input starting at the index until it reaches the null terminator,
  * adding the best matches to the linked list.
@@ -114,7 +115,7 @@ liblex_result eval_word(char* string, int index, eval_config* config, match* mat
  * @param matches the linked list to populate with matches
  * @return LIBLEX_SUCCESS if all goes well, or LIBLEX_MALLOC if there was an allocation failure.
  */
-liblex_result eval_all(char* string, int index, eval_config* config, ll* matches);
+liblex_result eval_all(char* string, size_t index, eval_config* config, ll* matches);
 /**
  * Function intended to be passed to "foreach" calls in libds.
  * Since eval_all creates a lot of matches and puts them all in a linked list,
diff --git a/src/eval.c b/src/eval.c
index f80f1d0..abdebc0 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -154,7 +154,7 @@ int _eval_foreach_find_match(void *data, va_list args){
   return 0;
 }
 
-liblex_result eval_word(char* string, int index, eval_config* config, match* mtch){
+liblex_result eval_word(char* string, size_t index, eval_config* config, match* mtch){
   liblex_result result = LIBLEX_SUCCESS;
   eval evl;
   evl.index = evl.begin = index;
@@ -189,7 +189,7 @@ liblex_result eval_word(char* string, int index, eval_config* config, match* mtc
 
   return result;
 }
-liblex_result eval_all(char* string, int index, eval_config* config, ll* matches){
+liblex_result eval_all(char* string, size_t index, eval_config* config, ll* matches){
   liblex_result result = LIBLEX_SUCCESS;
   match* new_match = NULL;
   int done = 0;