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#ifndef COMDEF_H
#define COMDEF_H
//Í·ÎļþÄÚÈÝ
#endif
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typedef unsigned char boolean; /* Boolean value type. */
typedef unsigned long int uint32; /* Unsigned 32 bit value */
typedef unsigned short uint16; /* Unsigned 16 bit value */
typedef unsigned char uint8; /* Unsigned 8 bit value */
typedef signed long int int32; /* Signed 32 bit value */
typedef signed short int16; /* Signed 16 bit value */
typedef signed char int8; /* Signed 8 bit value */
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typedef unsigned char byte; /* Unsigned 8 bit value type. */
typedef unsigned short word; /* Unsinged 16 bit value type. */
typedef unsigned long dword; /* Unsigned 32 bit value type. */
typedef unsigned char uint1; /* Unsigned 8 bit value type. */
typedef unsigned short uint2; /* Unsigned 16 bit value type. */
typedef unsigned long uint4; /* Unsigned 32 bit value type. */
typedef signed char int1; /* Signed 8 bit value type. */
typedef signed short int2; /* Signed 16 bit value type. */
typedef long int int4; /* Signed 32 bit value type. */
typedef signed long sint31; /* Signed 32 bit value */
typedef signed short sint15; /* Signed 16 bit value */
typedef signed char sint7; /* Signed 8 bit value */
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#define MEM_B( x ) ( *( (byte *) (x) ) )
#define MEM_W( x ) ( *( (word *) (x) ) )
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#define MAX( x, y ) ( ((x) > (y)) ? (x) : (y) ) #define MIN( x, y ) ( ((x) < (y)) ? (x) : (y) )
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void GetMemory(char *p)
{
// ´«µÝ½øÀ´µÄµÄֵʹµÃ*p==NULL
// ÕâÀïÐ޸ĵÄÊÇÕâ¸öº¯ÊýÄÚµÄÁÙʱָÕë±äÁ¿pµÄÖµ
p = (char *)malloc(100);
}
void Test(void)
{
char *str = NULL;
// ´«µÝ½øÈ¥µÄÊÇstrµÄÖµNULL
GetMemory(str);
// ÕâÀïstrÖ¸Õë² ......
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