diff --git a/lib/bitfields.h b/lib/bitfields.h
index 6d363e2c..f8d5c0af 100644
--- a/lib/bitfields.h
+++ b/lib/bitfields.h
@@ -119,7 +119,7 @@ namespace Bit{
     return *reinterpret_cast<float*>(&tmp);
   }
 
-  inline float htobf(char * p, float val){
+  inline void htobf(char * p, float val){
     htobl(p, *reinterpret_cast<unsigned long*>(&val));
   }
 
@@ -128,7 +128,7 @@ namespace Bit{
     return *reinterpret_cast<double*>(&tmp);
   }
 
-  inline float htobd(char * p, double val){
+  inline void htobd(char * p, double val){
     htobll(p, *reinterpret_cast<unsigned long*>(&val));
   }
 
diff --git a/lib/ebml.cpp b/lib/ebml.cpp
index e38ed2c2..b3cc9332 100644
--- a/lib/ebml.cpp
+++ b/lib/ebml.cpp
@@ -50,6 +50,7 @@ namespace EBML{
     case 7: return Bit::btoh56(p) & 0x1FFFFFFFFFFFFull;
     case 8: return Bit::btohll(p) & 0xFFFFFFFFFFFFFFull;
     }
+    return 0;
   }
 
   void UniInt::writeInt(char *p, const uint64_t val){
@@ -78,6 +79,7 @@ namespace EBML{
     case 7: return ((int64_t)readInt(p)) - 0xFFFFFFFFFFFFll;
     case 8: return ((int64_t)readInt(p)) - 0x7FFFFFFFFFFFFFll;
     }
+    return 0;
   }
 
   void UniInt::writeSInt(char *p, const int64_t sval){
diff --git a/lib/flv_tag.cpp b/lib/flv_tag.cpp
index 380539c8..925330b5 100644
--- a/lib/flv_tag.cpp
+++ b/lib/flv_tag.cpp
@@ -91,6 +91,7 @@ bool FLV::seekToTagType(FILE * f, uint8_t t){
         return false;
     }
   }
+  return false;
 }
 
 /// True if this media type requires init data.