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-rw-r--r--collections/vector/vector.adoc26
-rw-r--r--collections/vector/vector.c11
-rw-r--r--collections/vector/vector.h1
3 files changed, 37 insertions, 1 deletions
diff --git a/collections/vector/vector.adoc b/collections/vector/vector.adoc
index d439c85..0409b05 100644
--- a/collections/vector/vector.adoc
+++ b/collections/vector/vector.adoc
@@ -1,7 +1,7 @@
Vector
======
Tucker Evans
-v0.9, 2020-07-03
+v0.10, 2020-07-03
A basic vector, that hold pointers to your data structures.
@@ -208,6 +208,30 @@ vec_push(vector, str_dup(str2));
assert(strcmp(vec_back(vector), str2) == 0);
----
+[[vec_set]]
++void vec_set(vec *self, int index, void *item)+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Sets the element at position +index+ in +self+ to +item+.
+
+Examples
+^^^^^^^^
+[source,c]
+----
+#include "vector.h"
+#include <string.h>
+
+char *str1 = "ONE";
+char *str2 = "TWO";
+
+vec *vector = vec_new();
+vec_push(vector, str_dup(str1));
+vec_push(vector, str_dup(str2));
+
+vec_set(vector, 0, str2);
+
+assert(str_cmp(vec_pop(vector), str2) == 0);
+assert(str_cmp(vec_pop(vector), str2) == 0);
+----
[[vec_index]]
+void* vec_index(vec *self, int index)+
diff --git a/collections/vector/vector.c b/collections/vector/vector.c
index 0b816b7..5cb56ef 100644
--- a/collections/vector/vector.c
+++ b/collections/vector/vector.c
@@ -152,6 +152,17 @@ vec *root;
return root->base[root->end - 1];
}
+void vec_set(root, index, item)
+vec *root;
+int index;
+void *item;
+{
+ if (!root || index >= root->end || index < 0)
+ return;
+
+ root->base[index] = item;
+}
+
void* vec_index(root, index)
vec *root;
int index;
diff --git a/collections/vector/vector.h b/collections/vector/vector.h
index f1eea64..7d38694 100644
--- a/collections/vector/vector.h
+++ b/collections/vector/vector.h
@@ -18,6 +18,7 @@ void vec_push(vec*, void*);
void* vec_pop(vec*);
void* vec_back(vec*);
+void vec_set(vec*, int, void*);
void* vec_index(vec*, int);
/*memory*/