Math: minor cleanup, reordering and test renaming.

src/Magnum/Math/Functions.cpp

@@ -27,16 +27,16 @@
 
 namespace Magnum { namespace Math {
 
-UnsignedInt log2(UnsignedInt number) {
+UnsignedInt log(UnsignedInt base, UnsignedInt number) {
     UnsignedInt log = 0;
-    while(number >>= 1)
+    while(number /= base)
         ++log;
     return log;
 }
 
-UnsignedInt log(UnsignedInt base, UnsignedInt number) {
+UnsignedInt log2(UnsignedInt number) {
     UnsignedInt log = 0;
-    while(number /= base)
+    while(number >>= 1)
         ++log;
     return log;
 }

src/Magnum/Math/Functions.h

@@ -58,30 +58,30 @@ namespace Implementation {
 }
 
 /**
- * @brief Integral power
- *
- * Returns integral power of base to the exponent.
- */
+@brief Integral power
+
+Returns integral power of base to the exponent.
+*/
 template<UnsignedInt exponent, class T> constexpr T pow(T base) {
     return Implementation::Pow<exponent>::pow(base);
 }
 
 /**
- * @brief Base-2 integral logarithm
- *
- * Returns integral logarithm of given number with base `2`.
- * @see @ref log()
- */
-UnsignedInt MAGNUM_EXPORT log2(UnsignedInt number);
+@brief Integral logarithm
 
-/**
- * @brief Integral logarithm
- *
- * Returns integral logarithm of given number with given base.
- * @see @ref log2()
- */
+Returns integral logarithm of given number with given base.
+@see @ref log2(), @ref log(T)
+*/
 UnsignedInt MAGNUM_EXPORT log(UnsignedInt base, UnsignedInt number);
 
+/**
+@brief Base-2 integral logarithm
+
+Returns integral logarithm of given number with base `2`.
+@see @ref log(UnsignedInt, UnsignedInt), @ref log(T)
+*/
+UnsignedInt MAGNUM_EXPORT log2(UnsignedInt number);
+
 /**
 @brief Integer division with remainder
 

src/Magnum/Math/Test/FunctionsTest.cpp

@@ -64,8 +64,8 @@ struct FunctionsTest: Corrade::TestSuite::Tester {
 
     void normalizeTypeDeduction();
 
-    void pow();
-    void log();
+    void powIntegral();
+    void logIntegral();
     void log2();
     void div();
     void trigonometric();
@@ -112,8 +112,8 @@ FunctionsTest::FunctionsTest() {
 
               &FunctionsTest::normalizeTypeDeduction,
 
-              &FunctionsTest::pow,
-              &FunctionsTest::log,
+              &FunctionsTest::powIntegral,
+              &FunctionsTest::logIntegral,
               &FunctionsTest::log2,
               &FunctionsTest::div,
               &FunctionsTest::trigonometric,
@@ -431,7 +431,7 @@ void FunctionsTest::normalizeTypeDeduction() {
     CORRADE_COMPARE((Math::normalize<Float, Byte>('\x7F')), 1.0f);
 }
 
-void FunctionsTest::pow() {
+void FunctionsTest::powIntegral() {
     CORRADE_COMPARE(Math::pow<10>(2ul), 1024ul);
     CORRADE_COMPARE(Math::pow<0>(3ul), 1ul);
     CORRADE_COMPARE(Math::pow<2>(2.0f), 4.0f);
@@ -441,7 +441,7 @@ void FunctionsTest::pow() {
     CORRADE_COMPARE(a, 125);
 }
 
-void FunctionsTest::log() {
+void FunctionsTest::logIntegral() {
     CORRADE_COMPARE(Math::log(2, 256), 8ul);
     CORRADE_COMPARE(Math::log(256, 2), 0ul);
 }