import quincy 17.2.0

[ceph.git] / ceph / src / arrow / r / inst / include / cpp11 / named_arg.hpp

diff --git a/ceph/src/arrow/r/inst/include/cpp11/named_arg.hpp b/ceph/src/arrow/r/inst/include/cpp11/named_arg.hpp
new file mode 100644 (file)
index 0000000..762c8a7
--- /dev/null
+++ b/ceph/src/arrow/r/inst/include/cpp11/named_arg.hpp
@@ -0,0 +1,50 @@
+// cpp11 version: 0.3.1.1
+// vendored on: 2021-08-11
+#pragma once
+
+#include <stddef.h>  // for size_t
+
+#include <initializer_list>  // for initializer_list
+
+#include "cpp11/R.hpp"     // for SEXP, SEXPREC, literals
+#include "cpp11/as.hpp"    // for as_sexp
+#include "cpp11/sexp.hpp"  // for sexp
+
+namespace cpp11 {
+class named_arg {
+ public:
+  explicit named_arg(const char* name) : name_(name), value_(R_NilValue) {}
+  named_arg& operator=(std::initializer_list<int> il) {
+    value_ = as_sexp(il);
+    return *this;
+  }
+
+  template <typename T>
+  named_arg& operator=(T rhs) {
+    value_ = as_sexp(rhs);
+    return *this;
+  }
+
+  template <typename T>
+  named_arg& operator=(std::initializer_list<T> rhs) {
+    value_ = as_sexp(rhs);
+    return *this;
+  }
+
+  const char* name() const { return name_; }
+  SEXP value() const { return value_; }
+
+ private:
+  const char* name_;
+  sexp value_;
+};
+
+namespace literals {
+
+inline named_arg operator"" _nm(const char* name, std::size_t) { return named_arg(name); }
+
+}  // namespace literals
+
+using namespace literals;
+
+}  // namespace cpp11