libceed-sys 0.12.0

Low-level bindings for libCEED library.
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// Copyright (c) 2017-2022, Lawrence Livermore National Security, LLC and other CEED contributors.
// All Rights Reserved. See the top-level LICENSE and NOTICE files for details.
//
// SPDX-License-Identifier: BSD-2-Clause
//
// This file is part of CEED:  http://github.com/ceed

#ifndef CEED_FORTRAN_NAME_H
#define CEED_FORTRAN_NAME_H

/* establishes some macros to establish
   * the FORTRAN naming convention
     default      gs_setup, etc.
     -DUPCASE     GS_SETUP, etc.
     -DUNDERSCORE gs_setup_, etc.
   * a prefix for all external (non-FORTRAN) function names for example, -DPREFIX=jl_   transforms fail -> jl_fail
   * a prefix for all external FORTRAN function names for example, -DFPREFIX=jlf_ transforms gs_setup_ -> jlf_gs_setup_
*/

/* the following macro functions like a##b, but will expand a and/or b if they are themselves macros */
#define TOKEN_PASTE_(a, b) a##b
#define TOKEN_PASTE(a, b) TOKEN_PASTE_(a, b)

#ifdef PREFIX
#define PREFIXED_NAME(x) TOKEN_PASTE(PREFIX, x)
#else
#define PREFIXED_NAME(x) x
#endif

#ifdef FPREFIX
#define FPREFIXED_NAME(x) TOKEN_PASTE(FPREFIX, x)
#else
#define FPREFIXED_NAME(x) x
#endif

#if defined(UPCASE)
#define FORTRAN_NAME(low, up) FPREFIXED_NAME(up)
#define FORTRAN_UNPREFIXED(low, up) up
#elif defined(UNDERSCORE)
#define FORTRAN_NAME(low, up) FPREFIXED_NAME(TOKEN_PASTE(low, _))
#define FORTRAN_UNPREFIXED(low, up) TOKEN_PASTE(low, _)
#else
#define FORTRAN_NAME(low, up) FPREFIXED_NAME(low)
#define FORTRAN_UNPREFIXED(low, up) low
#endif

#endif  // CEED_FORTRAN_NAME_H