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-rw-r--r--collections/double_ended_queue/double_ended_queue.adoc7
-rw-r--r--collections/double_ended_queue/double_ended_queue.c5
2 files changed, 9 insertions, 3 deletions
diff --git a/collections/double_ended_queue/double_ended_queue.adoc b/collections/double_ended_queue/double_ended_queue.adoc
index 52a085f..5daf03e 100644
--- a/collections/double_ended_queue/double_ended_queue.adoc
+++ b/collections/double_ended_queue/double_ended_queue.adoc
@@ -1,7 +1,7 @@
Double Ended Queue
==================
Tucker Evans
-v1.0.1, 2020-06-10
+v1.0.2, 2020-07-06
A double ended queue implemented in a circular buffer.
@@ -514,6 +514,9 @@ Prints out the contents of the queue +self+ to +stdout+ (surounded by square bra
function that takes a pointer to the type of elements stored in +self+ and
returns a string representation.
+NOTE: Strings are freed after printing, therefore +strdup()+ should be used on
+any strings that are not for the sole purpose of printing here.
+
Examples
^^^^^^^^
[source,c]
@@ -524,7 +527,7 @@ Examples
char* to_string(str)
void *str;
{
- return str;
+ return strdup(str);
}
int main()
diff --git a/collections/double_ended_queue/double_ended_queue.c b/collections/double_ended_queue/double_ended_queue.c
index 28ed9dc..c08169d 100644
--- a/collections/double_ended_queue/double_ended_queue.c
+++ b/collections/double_ended_queue/double_ended_queue.c
@@ -147,12 +147,15 @@ deq *root;
char* to_string(void*);
{
int i, size;;
+ char *tmp;
size = deq_size(root);
printf("[");
for (i = 0; i < size; i++) {
- printf("%s,", to_string(deq_index(root, i)));
+ printf("%s,", tmp = to_string(deq_index(root, i)));
+ free(tmp);
+ tmp = NULL;
}
printf("\b]\n");
}