build: remove implicit type casting warnings

fixed.cpp

@@ -47,8 +47,11 @@ fixed<INT, FRAC>::to_double (void) const
 
 template <unsigned int INT, unsigned int FRAC>
 float
-fixed<INT, FRAC>::to_float (void) const
-    { return m_value / std::pow (2.0f, FRAC); }
+fixed<INT, FRAC>::to_float (void) const {
+    return static_cast<float> (
+        m_value / std::pow (2.0f, FRAC)
+    );
+}
 
 
 template <unsigned int INT, unsigned int FRAC>

float.cpp

@@ -82,7 +82,7 @@ ieee_float<E, S>::almost_equal (floating_t a,
                                 floating_t b) { 
     // Static cast to avoid integer casting warnings when using uint16_t for half
     static const floating_t epsilon = static_cast<floating_t> (0.001);
-    const floating_t diff = fabs (a - b);
+    const floating_t diff = static_cast<floating_t> (std::fabs (a - b));
 
     // * Use an exact equality first so that infinities are not indirectly compared. This would generate NaNs in the diff.
     // * Do not use gte or lte. This stops an infinite from making infinities on both sides of the inequality.

maths.cpp

@@ -138,14 +138,14 @@ sign (T val) {
 template <>
 int
 sign (float val) {
-    return copysign (1.0, val);
+    return static_cast<int> (copysign (1.0f, val));
 }
 
 
 template <>
 int
 sign (double val) {
-    return copysign (1.0, val);
+    return static_cast<int> (copysign (1.0, val));
 }
 
 

noise.cpp

@@ -33,6 +33,6 @@ util::noise::image2d (uint8_t *restrict pixels,
     for (size_t y = 0; y < height; ++y)
         for (size_t x = 0; x < width; ++x) {
             double v = p.eval (x, y);
-            pixels[x + y * width] = v * std::numeric_limits<uint8_t>::max ();
+            pixels[x + y * width] = static_cast<uint8_t> (v * std::numeric_limits<uint8_t>::max ());
         }
 }

options.cpp

@@ -239,7 +239,7 @@ bytesoption::execute (const std::string& data) {
         // after reading the specifiers.
         --cursor;
 
-        multiplier = std::pow (modifier_factor, (int)specified);
+        multiplier = static_cast<uintmax_t> (std::pow (modifier_factor, (int)specified));
         get_arg (data.substr(0, cursor + 1), m_data);
         *m_data *= multiplier;
     } catch (...) {

region.cpp

@@ -60,11 +60,11 @@ region<T>::diameter (void) const {
 template <typename T>
 void
 region<T>::scale (double factor) {
-    x -= (w * factor - w) / 2.0;
-    y -= (h * factor - h) / 2.0;
+    x -= static_cast<T> ((w * factor - w) / 2.0);
+    y -= static_cast<T> ((h * factor - h) / 2.0);
 
-    w *= factor;
-    h *= factor;
+    w = static_cast<T> (w * factor);
+    h = static_cast<T> (h * factor);
 }
 
 

time.cpp

@@ -95,7 +95,7 @@ delta_clock::seconds (void) {
 // ----------------------------------------------------------------------------
 util::period_query::period_query (double seconds) {
     m_time.start  = nanoseconds ();
-    m_time.period = seconds * SECOND;
+    m_time.period = static_cast<uint64_t> (seconds * SECOND);
 }