X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;f=src%2Fcstack.c;h=0906ea5b287effa431356ae7875433c4f23fcf13;hb=354cf2e07ccd0d7900f96bffc279093997cbe203;hp=31611c21f6c3df18dc7f5981f1c8e5bd839e136d;hpb=b1e0c986d6e531f71d0a3ecc01551ab2d9cd8929;p=smdp.git

diff --git a/src/cstack.c b/src/cstack.c
index 31611c2..0906ea5 100644
--- a/src/cstack.c
+++ b/src/cstack.c
@@ -1,6 +1,6 @@
 /*
  * An implementation of a char stack in heap memory.
- * Copyright (C) 2014 Michael Goehler
+ * Copyright (C) 2018 Michael Goehler
  *
  * This file is part of mdp.
  *
@@ -19,6 +19,7 @@
  *
  */
 
+#include <wchar.h>
 #include <stdio.h> // fprintf
 #include <stdlib.h> // malloc, realloc
 
@@ -42,30 +43,28 @@ cstack_t *cstack_init() {
     return stack;
 }
 
-void cstack_push(cstack_t *self, char c) {
+void cstack_push(cstack_t *self, wchar_t c) {
     if(self->size + sizeof(c) > self->alloc) {
-        self->alloc += (sizeof(char));
+        self->alloc += (sizeof(wchar_t));
         if((self->content = realloc(self->content, self->alloc)) == NULL) {
             fprintf(stderr, "%s\n", "cstack_push() failed to reallocate memory.");
             exit(EXIT_FAILURE);
         }
     }
     self->content[++self->head] = c;
-    self->size += (sizeof(char));
+    self->size += (sizeof(wchar_t));
 }
 
-char cstack_pop(cstack_t *self) {
-    self->size -= (sizeof(char));
+wchar_t cstack_pop(cstack_t *self) {
+    self->size -= (sizeof(wchar_t));
     return self->content[self->head--];
 }
 
-int cstack_top(cstack_t *self, char c) {
-    if(self->head >= 0 && self->content[self->head] == c)
-        return 1;
-    return 0;
+bool cstack_top(cstack_t *self, wchar_t c) {
+    return self->head >= 0 && self->content[self->head] == c;
 }
 
-int cstack_empty(cstack_t *self) {
+bool cstack_empty(cstack_t *self) {
     return self->head == -1;
 }