lib.h.svn-base

RT-Thread是发展中的下一代微内核嵌入式实时操作系统

#ifndef __LIB_H__
#define __LIB_H__

typedef unsigned char	rt_uint8;
typedef unsigned short	rt_uint16;
typedef unsigned long	rt_uint32;

typedef char	rt_int8;
typedef short	rt_int16;
typedef long	rt_int32;

#if (__GNUC__ > 2) || ((__GNUC__ == 2) && (__GNUC_MINOR__ >= 96))
	typedef __builtin_va_list va_list;
	#define va_start(v,l)	__builtin_stdarg_start((v),l)
	#define va_end			__builtin_va_end
	#define va_arg			__builtin_va_arg
	#define __va_copy(d,s)	__builtin_va_copy((d),(s))
#else
	typedef char* va_list;
	#define va_start(ap,argn) ap=((char*)&argn)+4
	#define va_end(ap) ((void)0)
	#define va_arg(ap,type) (ap+=sizeof(type), *(type*)((void*)ap-sizeof(type)))
	#define __va_copy(x,y) x=y
#endif

#define PAGE_MASK	(PAGE_SIZE-1)
#define PAGE_ALIGN(n)	((((rt_uint32)(n)) + PAGE_MASK) & ~PAGE_MASK)
#define PAGE_TRUNC(n)	(((rt_uint32)(n)) & ~PAGE_MASK)

void memset(char* p, char c, rt_uint32 size);
void *memcpy(void* dst, const void* src, rt_uint32 len);

rt_uint32 strlen(const char *s);
rt_uint32 strncmp(const char* cs, const char* ct, rt_uint32 count);
char *strncpy(char *dest, const char *src, rt_uint32 n);

rt_int32 atol(const char *str);

void printf(const char *fmt, ...);

#endif