Generate DbStmt templates from .sql files

m4 generator and related code. Reshuffles some CTF stuff to avoid
pulling in all of CTF and iostream for its fixed_string. Moves CTF out
of AdHoc namespace.
Add some initial SQL statements.

1 files changed, 59 insertions, 0 deletions

diff --git a/lib/fixedString.h b/lib/fixedString.h
new file mode 100644
index 0000000..df0529a
--- /dev/null
+++ b/lib/fixedString.h
@@ -0,0 +1,59 @@
+#ifndef MYGRATE_SUPPORT_FIXEDSTRING_H
+#define MYGRATE_SUPPORT_FIXEDSTRING_H
+
+#include <array>
+#include <cstddef>
+#include <string_view>
+
+namespace MyGrate::Support {
+	template<typename CharT, std::size_t N> class basic_fixed_string {
+	public:
+		// cppcheck-suppress noExplicitConstructor
+		constexpr basic_fixed_string(const CharT (&str)[N + 1])
+		{
+			for (decltype(N) x = 0; x < N; x++) {
+				arr.at(x) = str[x];
+			}
+			arr.at(N) = '\0';
+		}
+		constexpr basic_fixed_string(const CharT * str, decltype(N) len)
+		{
+			for (decltype(N) x = 0; x < len; x++) {
+				arr.at(x) = str[x];
+			}
+			arr.at(N) = '\0';
+		}
+		constexpr const char *
+		s() const
+		{
+			return arr.data();
+		}
+		constexpr operator const char *() const
+		{
+			return s();
+		}
+		constexpr std::string_view
+		v() const
+		{
+			return {arr.data(), arr.size() - 1};
+		}
+		constexpr auto &
+		operator[](std::size_t n) const
+		{
+			return arr[n];
+		}
+		constexpr auto
+		size() const
+		{
+			return arr.size() - 1;
+		}
+
+		std::array<CharT, N + 1> arr;
+	};
+
+	template<typename CharT, std::size_t N>
+	basic_fixed_string(const CharT (&str)[N]) -> basic_fixed_string<CharT, N - 1>;
+
+}
+
+#endif