conflict solved

include/ada/unicode.h

@@ -129,6 +129,13 @@ ada_really_inline constexpr bool is_ascii_hex_digit(char c) noexcept;
  */
 ada_really_inline constexpr bool is_ascii_digit(char c) noexcept;
 
+/**
+ * @private
+ * @details If a char is between U+0000 and U+007F inclusive, then it's an ASCII
+ * character.
+ */
+ada_really_inline constexpr bool is_ascii(char32_t c) noexcept;
+
 /**
  * @private
  * Checks if the input is a C0 control or space character.

src/unicode.cpp

@@ -274,13 +274,14 @@ ada_really_inline constexpr bool is_ascii_hex_digit(const char c) noexcept {
 }
 
 ada_really_inline constexpr bool is_ascii_digit(const char c) noexcept {
+  // An ASCII digit is a code point in the range U+0030 (0) to U+0039 (9),
+  // inclusive.
   return c >= '0' && c <= '9';
 }
 
 ada_really_inline constexpr bool is_ascii(const char32_t c) noexcept {
   // If code point is between U+0000 and U+007F inclusive, then return true.
   return c <= 0x7F;
-
 }
 
 ada_really_inline constexpr bool is_c0_control_or_space(const char c) noexcept {