/*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#define BUILD_ASSERT_DECL_GCCONLY(EXPR) ((void) 0)
#endif
+/* Casts 'pointer' to 'type' and issues a compiler warning if the cast changes
+ * anything other than an outermost "const" or "volatile" qualifier.
+ *
+ * The cast to int is present only to suppress an "expression using sizeof
+ * bool" warning from "sparse" (see
+ * http://permalink.gmane.org/gmane.comp.parsers.sparse/2967). */
+#define CONST_CAST(TYPE, POINTER) \
+ ((void) sizeof ((int) ((POINTER) == (TYPE) (POINTER))), \
+ (TYPE) (POINTER))
+
extern const char *program_name;
+extern const char *subprogram_name;
/* Returns the number of elements in ARRAY. */
#define ARRAY_SIZE(ARRAY) (sizeof ARRAY / sizeof *ARRAY)
void ovs_abort(int err_no, const char *format, ...)
PRINTF_FORMAT(2, 3) NO_RETURN;
+void ovs_abort_valist(int err_no, const char *format, va_list)
+ PRINTF_FORMAT(2, 0) NO_RETURN;
void ovs_fatal(int err_no, const char *format, ...)
PRINTF_FORMAT(2, 3) NO_RETURN;
void ovs_fatal_valist(int err_no, const char *format, va_list)
char *base_name(const char *file_name);
char *abs_file_name(const char *dir, const char *file_name);
+char *xreadlink(const char *filename);
+char *follow_symlinks(const char *filename);
+
void ignore(bool x OVS_UNUSED);
int log_2_floor(uint32_t);
int log_2_ceil(uint32_t);