ascii: add is_alpha query

2018-10-31 09:29:28 +11:00 · 2018-10-31 09:29:28 +11:00 · 44eeeaa134
commit 44eeeaa134
parent dca92e2199
1 changed files with 9 additions and 0 deletions
--- a/ascii.hpp
+++ b/ascii.hpp
@ -52,6 +52,15 @@ namespace cruft::ascii {
    }


+    //-------------------------------------------------------------------------
+    constexpr inline
+    bool
+    is_alpha (char c) noexcept
+    {
+        return is_lower (c) || is_upper (c);
+    }
+
+
    //-------------------------------------------------------------------------
    constexpr inline
    bool