[MKISOFS]

[reactos.git] / reactos / sdk / tools / mkisofs / schilytools / include / schily / varargs.h

diff --git a/reactos/sdk/tools/mkisofs/schilytools/include/schily/varargs.h b/reactos/sdk/tools/mkisofs/schilytools/include/schily/varargs.h
new file mode 100644 (file)
index 0000000..e261818
--- /dev/null
+++ b/reactos/sdk/tools/mkisofs/schilytools/include/schily/varargs.h
@@ -0,0 +1,140 @@
+/* @(#)varargs.h       1.8 14/01/06 Copyright 1998-2014 J. Schilling */
+/*
+ *     Generic header for users of var args ...
+ *
+ *     Includes a default definition for va_copy()
+ *     and some magic know how about the SVr4 Power PC var args ABI
+ *     to create a __va_arg_list() macro.
+ *
+ *     The __va_arg_list() macro is needed to fetch a va_list type argument
+ *     from a va_list. This is needed to implement a recursive "%r" printf.
+ *
+ *     Copyright (c) 1998-2014 J. Schilling
+ */
+/*
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * See the file CDDL.Schily.txt in this distribution for details.
+ * A copy of the CDDL is also available via the Internet at
+ * http://www.opensource.org/licenses/cddl1.txt
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file CDDL.Schily.txt from this distribution.
+ */
+
+#ifndef        _SCHILY_VARARGS_H
+#define        _SCHILY_VARARGS_H
+
+#ifndef        _SCHILY_MCONFIG_H
+#include <schily/mconfig.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef PROTOTYPES
+/*
+ * For ANSI C-compilers prefer stdarg.h
+ */
+#      ifdef   HAVE_STDARG_H
+#              ifndef  _INCL_STDARG_H
+#              include <stdarg.h>
+#              define  _INCL_STDARG_H
+#              endif
+#      else
+#              ifndef  _INCL_VARARGS_H
+#              include <varargs.h>
+#              define  _INCL_VARARGS_H
+#              endif
+#      endif
+#else
+/*
+ * For K&R C-compilers prefer varargs.h
+ */
+#      ifdef   HAVE_VARARGS_H
+#              ifndef  _INCL_VARARGS_H
+#              include <varargs.h>
+#              define  _INCL_VARARGS_H
+#              endif
+#      else
+#              ifndef  _INCL_STDARG_H
+#              include <stdarg.h>
+#              define  _INCL_STDARG_H
+#              endif
+#      endif
+#endif
+
+#if (defined(__linux__) || defined(__linux) || defined(sun)) && \
+               (defined(__ppc) || defined(__PPC) || \
+               defined(powerpc) || defined(__powerpc__))
+
+#      ifndef  VA_LIST_IS_ARRAY
+#      define  VA_LIST_IS_ARRAY
+#      endif
+#endif
+
+
+/*
+ * __va_copy() is used by GCC 2.8 or newer until va_copy() becomes
+ * a final ISO standard.
+ */
+#if !defined(va_copy) && !defined(HAVE_VA_COPY)
+#      if      defined(__va_copy)
+#              define  va_copy(to, from)       __va_copy(to, from)
+#      endif
+#endif
+
+/*
+ * va_copy() is a Solaris extension to provide a portable way to perform a
+ * variable argument list "bookmarking" function.
+ * If it is not available via stdarg.h, use a simple assignement for backward
+ * compatibility.
+ */
+#if !defined(va_copy) && !defined(HAVE_VA_COPY)
+#ifdef VA_LIST_IS_ARRAY
+#      define  va_copy(to, from)       ((to)[0] = (from)[0])
+#else
+#      define  va_copy(to, from)       ((to) = (from))
+#endif
+#endif
+
+/*
+ * I don't know any portable way to get an arbitrary
+ * C object from a var arg list so I use a
+ * system-specific routine __va_arg_list() that knows
+ * if 'va_list' is an array. You will not be able to
+ * assign the value of __va_arg_list() but it works
+ * to be used as an argument of a function.
+ * It is a requirement for recursive printf to be able
+ * to use this function argument. If your system
+ * defines va_list to be an array you need to know this
+ * via autoconf or another mechanism.
+ * It would be nice to have something like
+ * __va_arg_list() in stdarg.h
+ */
+
+#ifdef VA_LIST_IS_ARRAY
+#      define  __va_arg_list(list)     va_arg(list, void *)
+#else
+#      define  __va_arg_list(list)     va_arg(list, va_list)
+#endif
+
+/*
+ * This structure allows to work around the C limitation that a variable of
+ * type array cannot appear at the left side of an assignement operator.
+ * By putting va_list inside a struture, the assignement will work even in case
+ * that va_list is an array2.
+ */
+typedef struct {
+       va_list ap;
+} va_lists_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SCHILY_VARARGS_H */