1 files changed, 16 insertions, 16 deletions

diff --git a/src/node_crypto_bio.cc b/src/node_crypto_bio.cc
index 16ec515de9..e6ccb33f8f 100644
--- a/src/node_crypto_bio.cc
+++ b/src/node_crypto_bio.cc
@@ -37,7 +37,7 @@ const BIO_METHOD NodeBIO::method = {
   NodeBIO::Ctrl,
   NodeBIO::New,
   NodeBIO::Free,
-  NULL
+  nullptr
 };
 
 
@@ -61,13 +61,13 @@ int NodeBIO::New(BIO* bio) {
 
 
 int NodeBIO::Free(BIO* bio) {
-  if (bio == NULL)
+  if (bio == nullptr)
     return 0;
 
   if (bio->shutdown) {
-    if (bio->init && bio->ptr != NULL) {
+    if (bio->init && bio->ptr != nullptr) {
       delete FromBIO(bio);
-      bio->ptr = NULL;
+      bio->ptr = nullptr;
     }
   }
 
@@ -151,7 +151,7 @@ int NodeBIO::Gets(BIO* bio, char* out, int size) {
   if (i < size && i >= 0 && static_cast<size_t>(i) < nbio->Length())
     i++;
 
-  // Shift `i` a bit to NULL-terminate string later
+  // Shift `i` a bit to nullptr-terminate string later
   if (size == i)
     i--;
 
@@ -183,8 +183,8 @@ long NodeBIO::Ctrl(BIO* bio, int cmd, long num, void* ptr) {
       break;
     case BIO_CTRL_INFO:
       ret = nbio->Length();
-      if (ptr != NULL)
-        *reinterpret_cast<void**>(ptr) = NULL;
+      if (ptr != nullptr)
+        *reinterpret_cast<void**>(ptr) = nullptr;
       break;
     case BIO_C_SET_BUF_MEM:
       CHECK(0 && "Can't use SET_BUF_MEM_PTR with NodeBIO");
@@ -252,7 +252,7 @@ size_t NodeBIO::Read(char* out, size_t size) {
       avail = left;
 
     // Copy data
-    if (out != NULL)
+    if (out != nullptr)
       memcpy(out + offset, read_head_->data_ + read_head_->read_pos_, avail);
     read_head_->read_pos_ += avail;
 
@@ -274,7 +274,7 @@ size_t NodeBIO::Read(char* out, size_t size) {
 
 
 void NodeBIO::FreeEmpty() {
-  if (write_head_ == NULL)
+  if (write_head_ == nullptr)
     return;
   Buffer* child = write_head_->next_;
   if (child == write_head_ || child == read_head_)
@@ -413,16 +413,16 @@ void NodeBIO::TryAllocateForWrite(size_t hint) {
   Buffer* w = write_head_;
   Buffer* r = read_head_;
   // If write head is full, next buffer is either read head or not empty.
-  if (w == NULL ||
+  if (w == nullptr ||
       (w->write_pos_ == w->len_ &&
        (w->next_ == r || w->next_->write_pos_ != 0))) {
-    size_t len = w == NULL ? initial_ :
+    size_t len = w == nullptr ? initial_ :
                              kThroughputBufferLength;
     if (len < hint)
       len = hint;
     Buffer* next = new Buffer(len);
 
-    if (w == NULL) {
+    if (w == nullptr) {
       next->next_ = next;
       write_head_ = next;
       read_head_ = next;
@@ -435,7 +435,7 @@ void NodeBIO::TryAllocateForWrite(size_t hint) {
 
 
 void NodeBIO::Reset() {
-  if (read_head_ == NULL)
+  if (read_head_ == nullptr)
     return;
 
   while (read_head_->read_pos_ != read_head_->write_pos_) {
@@ -453,7 +453,7 @@ void NodeBIO::Reset() {
 
 
 NodeBIO::~NodeBIO() {
-  if (read_head_ == NULL)
+  if (read_head_ == nullptr)
     return;
 
   Buffer* current = read_head_;
@@ -463,8 +463,8 @@ NodeBIO::~NodeBIO() {
     current = next;
   } while (current != read_head_);
 
-  read_head_ = NULL;
-  write_head_ = NULL;
+  read_head_ = nullptr;
+  write_head_ = nullptr;
 }
 
 }  // namespace node