/*#*
*#* $Log$
+ *#* Revision 1.37 2004/12/08 09:43:21 bernie
+ *#* Metrowerks supports variadic macros.
+ *#*
+ *#* Revision 1.36 2004/12/08 08:55:54 bernie
+ *#* Rename sigset_t to sigmask_t and time_t to mtime_t, to avoid conflicts with POSIX definitions.
+ *#*
+ *#* Revision 1.35 2004/12/08 07:35:51 bernie
+ *#* Typo in macro name.
+ *#*
+ *#* Revision 1.34 2004/11/28 23:21:33 bernie
+ *#* Use mtime_t instead of overloading ANSI time_t with new semantics.
+ *#*
+ *#* Revision 1.33 2004/11/16 23:09:40 bernie
+ *#* size_t: Add 64bit definitions; time_t: Add 16bit hack for tiny CPUs.
+ *#*
+ *#* Revision 1.32 2004/11/16 22:42:44 bernie
+ *#* Doxygen fixes.
+ *#*
+ *#* Revision 1.31 2004/11/16 22:37:28 bernie
+ *#* IPTR: Remove obsolete definition.
+ *#*
+ *#* Revision 1.30 2004/11/16 22:30:19 bernie
+ *#* Declare fixed-size types before other types.
+ *#*
+ *#* Revision 1.29 2004/11/16 20:34:40 bernie
+ *#* UNUSED_VAR, USED_VAR, USED_FUNC: New macros; UNUSED_ARG: Rename from UNUSED.
+ *#*
+ *#* Revision 1.28 2004/10/21 11:03:52 bernie
+ *#* Typo.
+ *#*
+ *#* Revision 1.27 2004/10/21 10:09:40 bernie
+ *#* Remove spurious token in preprocessor directive.
+ *#*
+ *#* Revision 1.26 2004/10/19 08:55:14 bernie
+ *#* UNUSED_FUNC: New function attribute.
+ *#*
+ *#* Revision 1.25 2004/10/19 07:14:20 bernie
+ *#* Add macros to test for specific compiler features.
+ *#*
+ *#* Revision 1.24 2004/10/03 18:35:13 bernie
+ *#* Poison C++ keywords in C programs for better portability.
+ *#*
*#* Revision 1.23 2004/09/20 03:30:27 bernie
*#* Remove vsprintf_P() proto, no longer needed with avr-libc 1.0.4.
*#*
#define GNUC_PREREQ(maj, min) 0
#endif
+/* Some CW versions do not allow enabling C99 from the settings panel. */
+#if defined(__MWERKS__)
+ #pragma c99 on
+#endif
+
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
#define COMPILER_C99 1
#else
#elif defined(_MSC_VER) /* Win32 emulation support */
#include <setjmp.h>
- #include <time.h> /* for time_t */
/* FIXME: I can't remember why exactly this was needed (NdBernie) */
#define float double
#elif defined(__GNUC__)
+ /* Compiler features */
+ #define COMPILER_VARIADIC_MACROS 1 /* Even in C++ */
+ #define COMPILER_TYPEOF 1
+ #define COMPILER_STATEMENT_EXPRESSIONS 1
+
/* GCC attributes */
#define FORMAT(type,fmt,first) __attribute__((__format__(type, fmt, first)))
#define NORETURN __attribute__((__noreturn__))
- #define UNUSED(type,arg) __attribute__((__unused__)) type arg
+ #define UNUSED_ARG(type,arg) __attribute__((__unused__)) type arg
+ #define UNUSED_VAR(type,name) __attribute__((__unused__)) type name
+ #define USED_VAR(type,name) __attribute__((__used__)) type name
#define INLINE static inline __attribute__((__always_inline__))
#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 UNUSED_FUNC __attribute__((unused))
+ #define USED_FUNC __attribute__((__used__))
#define RESTRICT __restrict__
#define MUST_CHECK __attribute__((warn_unused_result))
#if GNUC_PREREQ(3,1)
#if CPU_X86
- /* Hack to avoid conflicts with system type */
- #define sigset_t system_sigset_t
#include <stddef.h>
#include <setjmp.h>
#include <stdbool.h>
- #undef system_sigset_t
#elif CPU_AVR
#endif
+ #ifndef __cplusplus
+ /*
+ * Disallow some C++ keywords as identifiers in C programs,
+ * for improved portability.
+ */
+ #pragma GCC poison new delete class template typename
+ #pragma GCC poison private protected public operator
+ #pragma GCC poison friend mutable using namespace
+ #pragma GCC poison cin cout cerr clog
+ #endif
+
#elif defined(__MWERKS__) && CPU_DSP56K
+ /* Compiler features */
+ #define COMPILER_VARIADIC_MACROS 1
+ #define COMPILER_TYPEOF 1
+ #define COMPILER_STATEMENT_EXPRESSIONS 1
+
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#endif
+/* Defaults for compiler extensions. */
+
+/*!
+ * \def COMPILER_VARIADIC_MACROS
+ * Support for macros with variable arguments.
+ */
+#ifndef COMPILER_VARIADIC_MACROS
+#define COMPILER_VARIADIC_MACROS (COMPILER_C99 != 0)
+#endif
+
+/*!
+ * \def COMPILER_TYPEOF
+ * Support for macros with variable arguments.
+ */
+#ifndef COMPILER_TYPEOF
+#define COMPILER_TYPEOF 0
+#endif
+
+/*!
+ * \def COMPILER_STATEMENT_EXPRESSIONS
+ * Support for macros with variable arguments.
+ */
+#ifndef COMPILER_STATEMENT_EXPRESSIONS
+#define COMPILER_STATEMENT_EXPRESSIONS 0
+#endif
+
/* A few defaults for missing compiler features. */
#ifndef INLINE
#define INLINE static inline
#ifndef DEPRECATED
#define DEPRECATED /* nothing */
#endif
-#ifndef UNUSED
-#define UNUSED(type,arg) type arg
+#ifndef UNUSED_ARG
+#define UNUSED_ARG(type,arg) type arg
+#endif
+#define UNUSED UNUSED_ARG /* OBSOLETE */
+#ifndef UNUSED_VAR
+#define UNUSED_VAR(type,name) type name
+#endif
+#ifndef USED_VAR
+#define USED_VAR(type,name) type name
#endif
#ifndef REGISTER
#define REGISTER /* nothing */
#ifndef CONST_FUNC
#define CONST_FUNC /* nothing */
#endif
+#ifndef UNUSED_FUNC
+#define UNUSED_FUNC /* nothing */
+#endif
+#ifndef USED_FUNC
+#define USED_FUNC /* nothing */
+#endif
#ifndef RESTRICT
#define RESTRICT /* nothing */
#endif
#endif
-/*
- * Standard type definitions.
- * These should be in <sys/types.h>, but many compilers lack them.
- */
-#if !(defined(size_t) || defined(_SIZE_T_DEFINED))
- typedef unsigned int size_t;
- typedef int ssize_t;
-#endif
-#if !(defined(_TIME_T_DEFINED) || defined(__time_t_defined))
- typedef long time_t;
-#endif /* _TIME_T_DEFINED || __time_t_defined */
-
-/*! 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 char sigset_t; /*!< Type for signal masks */
-typedef unsigned char page_t; /*!< Type for banked memory pages */
-
#if (defined(_MSC_VER) || defined(__IAR_SYSTEMS_ICC) || defined(__IAR_SYSTEMS_ICC__))
/*!
* \name ISO C99 fixed-size types
#include <stdint.h>
#endif
+
+#if CPU_AVR_ATMEGA8
+ /*
+ * The ATmega8 has a very small Flash, so we can't afford
+ * to link in support routines for 32bit integer arithmetic.
+ */
+ typedef int16_t mtime_t; /*!< Type for time expressed in milliseconds. */
+ typedef int16_t utime_t; /*!< Type for time expressed in microseconds. */
+ #define SIZEOF_MTIME_T (16 / CPU_BITS_PER_CHAR)
+ #define SIZEOF_UTIME_T (16 / CPU_BITS_PER_CHAR)
+#else
+ typedef int32_t mtime_t; /*!< Type for time expressed in milliseconds. */
+ typedef int32_t utime_t; /*!< Type for time expressed in microseconds. */
+ #define SIZEOF_MTIME_T (32 / CPU_BITS_PER_CHAR)
+ #define SIZEOF_UTIME_T (32 / CPU_BITS_PER_CHAR)
+#endif
+
+/*! Bulk storage large enough for both pointers or integers. */
+typedef void * iptr_t;
+typedef const void * const_iptr_t;
+
+typedef unsigned char sig_t; /*!< Type for signal bits. */
+typedef unsigned char sigmask_t; /*!< Type for signal masks. */
+typedef unsigned char page_t; /*!< Type for banked memory pages. */
+
+
+/*!
+ * \name Standard type definitions.
+ *
+ * These should be in <sys/types.h>, but many compilers lack them.
+ *
+ * \{
+ */
+#if !(defined(size_t) || defined(_SIZE_T_DEFINED))
+ #if CPU_REG_BITS > 32
+ /* 64bit. */
+ typedef unsigned long size_t;
+ typedef long ssize_t;
+ #else
+ /* 32bit or 16bit. */
+ typedef unsigned int size_t;
+ typedef int ssize_t;
+ #endif
+#endif
+
+#if !(defined(_TIME_T_DEFINED) || defined(__time_t_defined) || defined(_EMUL))
+ /*! For backwards compatibility. Use mtime_t in new code. */
+ #define time_t mtime_t
+ #define SIZEOF_TIME_T SIZEOF_MTIME_T
+#else
+ /* Just a guess, but quite safe. */
+ #define SIZEOF_TIME_T SIZEOF_LONG
+#endif /* _TIME_T_DEFINED || __time_t_defined */
+/*\}*/
+
+
/*!
* \name Types for hardware registers.
*
/*! Issue a compilation error if the \a condition is false */
#define STATIC_ASSERT(condition) \
- extern char PP_CAT(CT_ASSERT___, __LINE__)[(condition) ? 1 : -1]
+ UNUSED_VAR(extern char,PP_CAT(CT_ASSERT___, __LINE__)[(condition) ? 1 : -1])
#endif /* DEVLIB_COMPILER_H */
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