Added sqrt()

git-svn-id: http://svn.clifford.at/openscad/trunk@435 b57f626f-c46c-0410-a088-ec61d464b74c

1 files changed, 8 insertions, 0 deletions

diff --git a/src/func.cc b/src/func.cc
index 76be588..fa04750 100644
--- a/src/func.cc
+++ b/src/func.cc
@@ -211,6 +211,13 @@ Value builtin_floor(const QVector<QString>&, const QVector<Value> &args)
 	return Value();
 }
 
+Value builtin_sqrt(const QVector<QString>&, const QVector<Value> &args)
+{
+	if (args.size() == 1 && args[0].type == Value::NUMBER)
+		return Value(sqrt(args[0].num));
+	return Value();
+}
+
 Value builtin_str(const QVector<QString>&, const QVector<Value> &args)
 {
 	QString str;
@@ -267,6 +274,7 @@ void initialize_builtin_functions()
 	builtin_functions["round"] = new BuiltinFunction(&builtin_round);
 	builtin_functions["ceil"] = new BuiltinFunction(&builtin_ceil);
 	builtin_functions["floor"] = new BuiltinFunction(&builtin_floor);
+	builtin_functions["sqrt"] = new BuiltinFunction(&builtin_sqrt);
 	builtin_functions["str"] = new BuiltinFunction(&builtin_str);
 	builtin_functions["lookup"] = new BuiltinFunction(&builtin_lookup);
 	initialize_builtin_dxf_dim();