[GitHub] [incubator-doris] yiguolei commented on a diff in pull request #9727: [opt] avoid memcpy when building page

[GitBox <gi...@apache.org>]

yiguolei commented on code in PR #9727:
URL: https://github.com/apache/incubator-doris/pull/9727#discussion_r878995037


##########
be/src/util/faststring.cc:
##########
@@ -37,18 +37,20 @@ void faststring::GrowToAtLeast(size_t newcapacity) {
 
 void faststring::GrowArray(size_t newcapacity) {
     DCHECK_GE(newcapacity, capacity_);
-    std::unique_ptr<uint8_t[]> newdata(new uint8_t[newcapacity]);
-    if (len_ > 0) {
-        memcpy(&newdata[0], &data_[0], len_);
-    }
-    capacity_ = newcapacity;
+    uint8_t* newdata = NULL;

Review Comment:
   Not use NULL, use nullptr please.



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