diff --git a/extent.cpp b/extent.cpp
index d029b556..8316213f 100644
--- a/extent.cpp
+++ b/extent.cpp
@@ -56,7 +56,7 @@ extent<T>::operator= (const extent<T> &rhs) {
 template <typename T>
 T
 extent<T>::diameter (void) const {
-    return (T)sqrt (w * w + h * h);
+    return static_cast<T> (sqrt (w * w + h * h));
 }
 
 
diff --git a/fourcc.cpp b/fourcc.cpp
index 2c96646a..c5b81b1d 100644
--- a/fourcc.cpp
+++ b/fourcc.cpp
@@ -43,10 +43,10 @@ fourcc
 fourcc::from_string (const char data[4]) {
     fourcc lhs;
 
-    lhs.data[0] = (uint8_t)data[0];
-    lhs.data[1] = (uint8_t)data[1];
-    lhs.data[2] = (uint8_t)data[2];
-    lhs.data[3] = (uint8_t)data[3];
+    lhs.data[0] = static_cast<uint8_t> (data[0]);
+    lhs.data[1] = static_cast<uint8_t> (data[1]);
+    lhs.data[2] = static_cast<uint8_t> (data[2]);
+    lhs.data[3] = static_cast<uint8_t> (data[3]);
 
     return lhs;
 }
@@ -62,10 +62,10 @@ fourcc::operator== (const char rhs[4]) const {
 
 
 fourcc::operator uint32_t (void) const {
-    return (uint32_t)(data[0] << 24U |
-                      data[1] << 16U |
-                      data[2] <<  8U |
-                      data[3]);
+    return static_cast<uint32_t> (data[0] << 24U |
+                                  data[1] << 16U |
+                                  data[2] <<  8U |
+                                  data[3]);
 }
 
 
diff --git a/guid.cpp b/guid.cpp
index ffb22ab2..b0f862a3 100644
--- a/guid.cpp
+++ b/guid.cpp
@@ -156,14 +156,14 @@ guid::operator== (const guid &rhs) const {
 
 std::ostream&
 operator<< (std::ostream &os, const guid &g) {
-    uint64_t data4_b = (uint64_t)g.data4[0] <<  0 |
-                       (uint64_t)g.data4[1] <<  8 |
-                       (uint64_t)g.data4[2] << 16 |
-                       (uint64_t)g.data4[3] << 24 |
-                       (uint64_t)g.data4[4] << 32 |
-                       (uint64_t)g.data4[5] << 40;
-    uint16_t data4_a = (uint16_t)g.data4[6] <<  0 |
-                       (uint16_t)g.data4[7] <<  8;
+    uint64_t data4_b = static_cast<uint64_t> (g.data4[0]) <<  0u |
+                       static_cast<uint64_t> (g.data4[1]) <<  8u |
+                       static_cast<uint64_t> (g.data4[2]) << 16u |
+                       static_cast<uint64_t> (g.data4[3]) << 24u |
+                       static_cast<uint64_t> (g.data4[4]) << 32u |
+                       static_cast<uint64_t> (g.data4[5]) << 40u;
+    uint16_t data4_a = static_cast<uint16_t> (g.data4[6]) <<  0u |
+                       static_cast<uint16_t> (g.data4[7]) <<  8u;
 
     os << hex << setfill ('0') << setw (2 * sizeof (g.data1)) << g.data1 << "-"
                                << setw (2 * sizeof (g.data2)) << g.data2 << "-"