X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FSupport%2FMutex.cpp;h=c8d3844d0c9618a19133836c06aabac831f42e35;hb=ddf3065b5f0d7cf529c536e3e7a8e1fb590ed821;hp=37c9d73daee8aca9007a3cdfc03be2a45ddca388;hpb=11ecfc88eb9747682cd32a80be46336e11074bb4;p=oota-llvm.git

diff --git a/lib/Support/Mutex.cpp b/lib/Support/Mutex.cpp
index 37c9d73daee..c8d3844d0c9 100644
--- a/lib/Support/Mutex.cpp
+++ b/lib/Support/Mutex.cpp
@@ -42,7 +42,7 @@ using namespace sys;
 
 // Construct a Mutex using pthread calls
 MutexImpl::MutexImpl( bool recursive)
-  : data_(0)
+  : data_(nullptr)
 {
   // Declare the pthread_mutex data structures
   pthread_mutex_t* mutex =
@@ -75,7 +75,7 @@ MutexImpl::MutexImpl( bool recursive)
 MutexImpl::~MutexImpl()
 {
   pthread_mutex_t* mutex = static_cast<pthread_mutex_t*>(data_);
-  assert(mutex != 0);
+  assert(mutex != nullptr);
   pthread_mutex_destroy(mutex);
   free(mutex);
 }
@@ -84,7 +84,7 @@ bool
 MutexImpl::acquire()
 {
   pthread_mutex_t* mutex = static_cast<pthread_mutex_t*>(data_);
-  assert(mutex != 0);
+  assert(mutex != nullptr);
 
   int errorcode = pthread_mutex_lock(mutex);
   return errorcode == 0;
@@ -94,7 +94,7 @@ bool
 MutexImpl::release()
 {
   pthread_mutex_t* mutex = static_cast<pthread_mutex_t*>(data_);
-  assert(mutex != 0);
+  assert(mutex != nullptr);
 
   int errorcode = pthread_mutex_unlock(mutex);
   return errorcode == 0;
@@ -104,7 +104,7 @@ bool
 MutexImpl::tryacquire()
 {
   pthread_mutex_t* mutex = static_cast<pthread_mutex_t*>(data_);
-  assert(mutex != 0);
+  assert(mutex != nullptr);
 
   int errorcode = pthread_mutex_trylock(mutex);
   return errorcode == 0;