Declare single-argument (non-converting) constructors "explicit"

In order to avoid unintended implicit conversions.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/sync.h b/src/sync.h
index ddaf62b3b3..0871c5fb4d 100644
--- a/src/sync.h
+++ b/src/sync.h
@@ -196,7 +196,7 @@ private:
     int value;
 
 public:
-    CSemaphore(int init) : value(init) {}
+    explicit CSemaphore(int init) : value(init) {}
 
     void wait()
     {
@@ -267,7 +267,7 @@ public:
 
     CSemaphoreGrant() : sem(nullptr), fHaveGrant(false) {}
 
-    CSemaphoreGrant(CSemaphore& sema, bool fTry = false) : sem(&sema), fHaveGrant(false)
+    explicit CSemaphoreGrant(CSemaphore& sema, bool fTry = false) : sem(&sema), fHaveGrant(false)
     {
         if (fTry)
             TryAcquire();