lib/decmath.js, test/10_dadd.js: New files

2 files changed, 113 insertions, 0 deletions

diff --git a/lib/decmath.js b/lib/decmath.js
new file mode 100644
index 0000000..d32cf1d
--- /dev/null
+++ b/lib/decmath.js
@@ -0,0 +1,61 @@
+/*
+ * lib/decmath.js - Fast and light decimal arithmetic
+ *
+ * @licstart  The following is the entire license notice for the
+ * JavaScript code in this file.
+ *
+ * Copyright (C) 2017  Patrick McDermott
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As additional permission under GNU GPL version 3 section 7, you
+ * may distribute non-source (e.g. minimized or compacted) forms of
+ * this program without the copy of the GNU GPL normally required by
+ * section 4, provided you include this license notice and a URL
+ * through which recipients can access the Corresponding Source.
+ *
+ * @licend  The above is the entire license notice
+ * for the JavaScript code in this file.
+ */
+
+'use strict';
+
+function dadd(a, b)
+{
+	/* TODO: Implement */
+	return a + b;
+}
+
+function dmul(a, b)
+{
+	/* TODO: Implement */
+	return a * b;
+}
+
+function drhtz(a, p)
+{
+	/* TODO: Implement */
+}
+
+function drhfz(a, p)
+{
+	/* TODO: Implement */
+}
+
+if (typeof global != "undefined") {
+	global.dadd = dadd;
+	global.dmul = dmul;
+	global.drhtz = drhtz;
+	global.drhfz = drhfz;
+}
diff --git a/test/10_dadd.js b/test/10_dadd.js
new file mode 100644
index 0000000..9758964
--- /dev/null
+++ b/test/10_dadd.js
@@ -0,0 +1,52 @@
+/*
+ * test/10_dadd.js - dadd tests
+ *
+ * @licstart  The following is the entire license notice for the
+ * JavaScript code in this file.
+ *
+ * Copyright (C) 2017  Patrick McDermott
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As additional permission under GNU GPL version 3 section 7, you
+ * may distribute non-source (e.g. minimized or compacted) forms of
+ * this program without the copy of the GNU GPL normally required by
+ * section 4, provided you include this license notice and a URL
+ * through which recipients can access the Corresponding Source.
+ *
+ * @licend  The above is the entire license notice
+ * for the JavaScript code in this file.
+ */
+
+var assert = require("assert");
+require("../lib/decmath.js");
+
+describe("dadd()", function() {
+	var tests = [
+		/*   a      b       c */
+		[ 2   ,  2   ,  "4."  ],
+		[ 1   ,  0.23,  "1.23"],
+		[ 0.23,  1   ,  "1.23"],
+		[ 1.23,  4.56,  "5.79"],
+		[-1.23,  4.56,  "3.33"],
+		[-1.23, -4.56, "-5.79"],
+		[ 9.95,  0.52, "10.47"],
+	];
+	tests.forEach(function(test) {
+		it("correctly adds " + test[0] + " + " + test[1] + " = " +
+			test[2], function() {
+				assert.equal(dadd(test[0], test[1]), test[2]);
+		});
+	});
+});