Compile time bitmask string length check

src/cppbitmask.h

@@ -9,23 +9,22 @@
 class TstCppBitmask;
 
 namespace cpputils {
-template<typename T>
-class basic_bit_pattern
+template<std::size_t BITS_COUNT>
+class bit_pattern
 {
     friend class ::TstCppBitmask;
-    T expected{};
-    T mask{};
 
 public:
-    template<std::size_t Size>
-    constexpr basic_bit_pattern(const char (&input)[Size])
+    using value_t = std::uint32_t; // TODO make dependant to BITS_COUNT
+
+    constexpr bit_pattern(const char (&input)[BITS_COUNT+1])
     {
-        T cur_bit = (1 << (Size - 2));
+        value_t cur_bit = (1 << (BITS_COUNT - 1));
         for (const char val : input)
         {
             switch (val)
             {
-            case 0:
+            case '\0':
                 return;
             case '1':
                 expected |= cur_bit;
@@ -44,17 +43,19 @@ public:
         }
     }
 
-    constexpr bool match(const T value) const
+    constexpr bool match(const value_t value) const
     {
         return (value & mask) == expected;
     }
 
-    constexpr friend bool operator==(const basic_bit_pattern &l, const basic_bit_pattern &r)
+    constexpr friend bool operator==(const bit_pattern &l, const bit_pattern &r)
     {
         return l.expected == r.expected &&
                l.mask     == r.mask;
     }
-};
 
-using bit_pattern = basic_bit_pattern<std::uint32_t>;
+private:
+    value_t expected{};
+    value_t mask{};
+};
 } // namespace cpputils