* This file is part of DevLib - See devlib/README for information.
* -->
*
- * \version $Id$
+ * \brief Additional support macros for compiler independance
*
+ * \version $Id$
* \author Bernardo Innocenti <bernie@develer.com>
- *
- * \brief Additional support macros for compiler independance
*/
/*#*
*#* $Log$
+ *#* Revision 1.23 2004/09/20 03:30:27 bernie
+ *#* Remove vsprintf_P() proto, no longer needed with avr-libc 1.0.4.
+ *#*
+ *#* Revision 1.22 2004/09/14 21:03:04 bernie
+ *#* PURE_FUNC, CONST_FUNC, MUST_CHECK: New function attributes; LIKELY()/UNLIKELY(): Fix for non-integral expressions.
+ *#*
+ *#* Revision 1.21 2004/09/06 21:38:31 bernie
+ *#* Misc documentation and style fixes.
+ *#*
+ *#* Revision 1.20 2004/08/29 21:57:58 bernie
+ *#* Move back STATIC_ASSERT() to compiler.h as it's needed in cpu.h;
+ *#* iptr_t, const_iptr_t: Replace IPTR macro with a real typedef.
+ *#*
*#* Revision 1.19 2004/08/25 14:12:08 rasky
*#* Aggiornato il comment block dei log RCS
*#*
#define NORETURN __attribute__((__noreturn__))
#define UNUSED(type,arg) __attribute__((__unused__)) type arg
#define INLINE static inline __attribute__((__always_inline__))
- #define LIKELY(x) __builtin_expect((x), 1)
- #define UNLIKELY(x) __builtin_expect((x), 0)
- #define RESTRICT __restrict__
+ #define LIKELY(x) __builtin_expect(!!(x), 1)
+ #define UNLIKELY(x) __builtin_expect(!!(x), 0)
+ #define PURE_FUNC __attribute__((pure))
+ #define CONST_FUNC __attribute__((const))
+ #define RESTRICT __restrict__
+ #define MUST_CHECK __attribute__((warn_unused_result))
#if GNUC_PREREQ(3,1)
- #define DEPRECATED __attribute__((__deprecated__))
+ #define DEPRECATED __attribute__((__deprecated__))
#endif
#if CPU_X86
- /* hack to avoid conflicts with system type */
+ /* Hack to avoid conflicts with system type */
#define sigset_t system_sigset_t
#include <stddef.h>
#include <setjmp.h>
#include <stddef.h>
#include <stdbool.h>
- /* Missing printf-family functions in avr-libc/stdio.h */
- #include <stdarg.h>
- #include <avr/pgmspace.h>
- int vsprintf_P(char *buf, const char * PROGMEM fmt, va_list ap);
-
/* Support for harvard architectures */
#ifdef _PROGMEM
#define PGM_READ_CHAR(s) pgm_read_byte(s)
#define PGM_FUNC(x) x ## _P
- #define PGM_ATTR PROGMEM
+ #define PGM_ATTR PROGMEM
#endif
#endif
#ifndef UNLIKELY
#define UNLIKELY(x) x
#endif
+#ifndef PURE_FUNC
+#define PURE_FUNC /* nothing */
+#endif
+#ifndef CONST_FUNC
+#define CONST_FUNC /* nothing */
+#endif
#ifndef RESTRICT
-#define RESTRICT
+#define RESTRICT /* nothing */
+#endif
+#ifndef MUST_CHECK
+#define MUST_CHECK /* nothing */
#endif
/* Support for harvard architectures */
/* Support for hybrid C/C++ applications. */
#ifdef __cplusplus
+ #define EXTERN_C extern "C"
#define EXTERN_C_BEGIN extern "C" {
#define EXTERN_C_END }
#else
+ #define EXTERN_C extern
#define EXTERN_C_BEGIN /* nothing */
#define EXTERN_C_END /* nothing */
#endif
/*
- * Standard type definitions
+ * Standard type definitions.
* These should be in <sys/types.h>, but many compilers lack them.
*/
#if !(defined(size_t) || defined(_SIZE_T_DEFINED))
typedef long time_t;
#endif /* _TIME_T_DEFINED || __time_t_defined */
-/*! Storage for pointers and integers */
-/* FIXME: turn this into a typedef? */
-#define IPTR void *
+/*! Bulk storage large enough for both pointers or integers */
+typedef void * iptr_t;
+typedef const void * const_iptr_t;
+#define IPTR iptr_t /* OBSOLETE */
typedef long utime_t; /*!< Type for time expressed in microseconds */
typedef unsigned char sig_t; /*!< Type for signal bits */
typedef unsigned short int uint16_t;
typedef unsigned long int uint32_t;
/* \} */
-#elif defined(__GNUC__) && defined(__AVR__)
+#elif defined(__GNUC__) && CPU_AVR
/* avr-libc is weird... */
#include <inttypes.h>
#else
/* Quasi-ANSI macros */
#ifndef offsetof
/*!
- * Return the byte offset of the member \a m in struct \a s
+ * Return the byte offset of the member \a m in struct \a s.
*
* \note This macro should be defined in "stddef.h" and is sometimes
* compiler-specific (g++ has a builtin for it).
#endif
#ifndef countof
/*!
- * Count the number of elements in the static array \a a
+ * Count the number of elements in the static array \a a.
*
- * \note This macro is non-standard, but implmenents a very common idiom
+ * \note This macro is non-standard, but implements a very common idiom
*/
#define countof(a) (sizeof(a) / sizeof(*(a)))
#endif
+/*! Issue a compilation error if the \a condition is false */
+#define STATIC_ASSERT(condition) \
+ extern char PP_CAT(CT_ASSERT___, __LINE__)[(condition) ? 1 : -1]
+
#endif /* DEVLIB_COMPILER_H */