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Diffstat (limited to 'clib/nargs.h')
| -rw-r--r-- | clib/nargs.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/clib/nargs.h b/clib/nargs.h new file mode 100644 index 0000000..3a8666d --- /dev/null +++ b/clib/nargs.h @@ -0,0 +1,51 @@ +/* + * Copyright (c) International Business Machines Corp., 2014 + * + * 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 2 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/*! + * @file nargs.h + * @brief Macro utilities + * @author Shaun Wetzstein <shaun@us.ibm.com> + * @date 2010-2011 + */ + +#ifndef __NARGS_H__ +#define __NARGS_H__ + +/*! + * @def STRCAT(x,y) + * @hideinitializer + * @brief C string concatination of @em x and @em y + * @param x [in] C-style string + * @param y [in] C-style string + */ +/*! @cond */ +#define STRCAT(x,y) __C__(x, y) +#define __C__(x,y) x ## y +/*! @endcond */ + +/*! + * @def NARGS(...) + * @hideinitializer + * @brief Return the number of pre-process macro parameters + */ +/*! @cond */ +#define __NARGS__(junk, _10, _9, _8, _7, _6, _5, _4, _3, _2, _1, _, ...) _ +#define NARGS(...) __NARGS__(junk, ##__VA_ARGS__, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) +/*! @endcond */ + +#endif /* __NARGS_H__ */ |
