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src/tables.h

@@ -0,0 +1,18 @@
+#pragma once
+
+constexpr inline struct Tables {
+  constexpr Tables() {
+    whitespace[' '] = true;
+    whitespace['\n'] = true;
+    whitespace['\r'] = true;
+    whitespace['\t'] = true;
+    for (int i = 0; i < 10; ++i) {
+      number['0' + i] = true;
+    }
+    number['.'] = true;
+    number['+'] = true;
+    number['-'] = true;
+  }
+  alignas(16) bool whitespace[256]{};
+  alignas(16) bool number[256]{};
+} tables;