X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=GrowingBuffer.cpp;h=b5dea96c24910a9d35b868b4aebbb2d0b7fba082;hb=403ab22b5e05c4d1cdfd3b6c5993bd0240c8d4d8;hp=492f2442488e8608d57da8a93320d7d3ef5a7ae8;hpb=b24b03abb90553821d627e87dac5ec07d81fd09c;p=ecparse.git

diff --git a/GrowingBuffer.cpp b/GrowingBuffer.cpp
index 492f244..b5dea96 100644
--- a/GrowingBuffer.cpp
+++ b/GrowingBuffer.cpp
@@ -4,6 +4,7 @@
 
 #include <stdlib.h>
 #include <string.h>
+#include <stddef.h>
 #include "GrowingBuffer.h"
 
 GrowingBuffer::GrowingBuffer(size_t initialSize) {
@@ -37,23 +38,30 @@ void GrowingBuffer::seek(size_t position) {
 
 void* GrowingBuffer::read(void* buffer, size_t length) {
 	size_t bytesToCopy = (length > (limit - position)) ? (limit - position) : length;
-	memcpy(buffer, (char*) data + position, bytesToCopy);
+	memcpy(buffer, (ptrdiff_t*) data + position, bytesToCopy);
 	position += bytesToCopy;
 	return buffer;
 }
 
 void GrowingBuffer::write(const void* buffer, size_t length) {
-	if (length > (size - position)) {
+	if (length > (size - limit)) {
 		int newSize = size;
 		do {
 			newSize *= 2;
-		} while (length > (newSize - position));
+		} while (length > (newSize - limit));
 		void* newData = malloc(newSize);
 		memcpy(newData, data, position);
 		free(data);
 		data = newData;
 	}
-	memcpy((char*) data + position, buffer, length);
+	memcpy((ptrdiff_t*) data + limit, buffer, length);
+	limit += length;
+}
+
+void GrowingBuffer::cut() {
+	memcpy(data, (ptrdiff_t*) data + position, position);
+	limit = position;
+	position = 0;
 }
 
 void GrowingBuffer::truncate() {