Add Vector::resize()
Bug: 8384764
Change-Id: Icee83d389f3e555eba7d419b64c8d52a9aa21b8b
diff --git a/include/utils/Vector.h b/include/utils/Vector.h
index f3020d6..ed7b725 100644
--- a/include/utils/Vector.h
+++ b/include/utils/Vector.h
@@ -80,7 +80,13 @@
//! sets the capacity. capacity can never be reduced less than size()
inline ssize_t setCapacity(size_t size) { return VectorImpl::setCapacity(size); }
- /*!
+ /*!
+ * set the size of the vector. items are appended with the default
+ * constructor, or removed from the end as needed.
+ */
+ inline ssize_t resize(size_t size) { return VectorImpl::resize(size); }
+
+ /*!
* C-style array access
*/
diff --git a/include/utils/VectorImpl.h b/include/utils/VectorImpl.h
index c4ec2ff..9bc50e6 100644
--- a/include/utils/VectorImpl.h
+++ b/include/utils/VectorImpl.h
@@ -64,6 +64,7 @@
inline bool isEmpty() const { return mCount == 0; }
size_t capacity() const;
ssize_t setCapacity(size_t size);
+ ssize_t resize(size_t size);
/*! append/insert another vector or array */
ssize_t insertVectorAt(const VectorImpl& vector, size_t index);
diff --git a/libs/utils/VectorImpl.cpp b/libs/utils/VectorImpl.cpp
index c3257bb..70f49de 100644
--- a/libs/utils/VectorImpl.cpp
+++ b/libs/utils/VectorImpl.cpp
@@ -343,6 +343,16 @@
return new_capacity;
}
+ssize_t VectorImpl::resize(size_t size) {
+ ssize_t result = NO_ERROR;
+ if (size > mCount) {
+ result = insertAt(mCount, size - mCount);
+ } else if (size < mCount) {
+ result = removeItemsAt(size, mCount - size);
+ }
+ return result < 0 ? result : size;
+}
+
void VectorImpl::release_storage()
{
if (mStorage) {