llvm-project/flang/runtime/namelist.h

38 lines
1.2 KiB
C++

//===-- runtime/namelist.h --------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// Defines the data structure used for NAMELIST I/O
#ifndef FORTRAN_RUNTIME_NAMELIST_H_
#define FORTRAN_RUNTIME_NAMELIST_H_
#include <cstddef>
namespace Fortran::runtime {
class Descriptor;
} // namespace Fortran::runtime
namespace Fortran::runtime::io {
// A NAMELIST group is a named ordered collection of distinct variable names.
// It is packaged by lowering into an instance of this class.
// If all the items are variables with fixed addresses, the NAMELIST group
// description can be in a read-only section.
class NamelistGroup {
public:
struct Item {
const char *name; // NUL-terminated lower-case
const Descriptor &descriptor;
};
const char *groupName; // NUL-terminated lower-case
std::size_t items;
const Item *item; // in original declaration order
};
} // namespace Fortran::runtime::io
#endif // FORTRAN_RUNTIME_NAMELIST_H_