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ÀýÈç:
#if defined(_PC) && defined(_SSE)
# ifdef DEBUG
# define __PC_VERIFY_ALIGNMENT__
# endif
# ifdef __PC_VERIFY_ALIGNMENT__
# define PC_VERIFY_ALIGN_ASSERT( ptr ) \
{\
if( ( ( (INT) ptr ) % 16) != 0 ) \
{\
debugf( NAME_Critical, TEXT("Unaligned PC data (0x%X)"), ptr ); \
DebugBreak(); \
}\
}
# else
# define PC_VERIFY_ALIGN_ASSERT( ptr )
# endif
#else
# define PC_VERIFY_ALIGN_ASSERT( ptr )
#endif
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Í·Îļþͨ¹ýinclude Ô¤´¦ÀíÆ÷ָʾ·ûpreprocessor include directive ¶ø³ÉΪÎÒÃdzÌÐòµÄ
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ÕâЩָʾ·ûµÄ³ÌÐò±»³Æ×öÔ¤´¦ÀíÆ÷preprocessor ͨ³£À¦°óÔÚ±àÒëÆ÷ÖÐ
#include ָʾ·û¶ÁÈëÖ¸¶¨ÎļþµÄÄÚÈÝËüÓÐÁ½ÖÖ¸ñʽ
#include <some_file.h>
#include "my_file.h"
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Ô´Âë:
# include <stdio.h>
int main()
{
int num;
/* ÏÂÃ涨ÒåµÄ¸÷±äÁ¿£¬·Ö±ð´ú±í¸öλ£¬Ê®Î»£¬°Ùλ£¬Ç§Î»£¬Íòλ£¬Ê®ÍòλÒÔ¼°Î»Êý */
int indiv, ten, hundred, thousand;
int ten_thousand, hundred_thous ......
Ô´Â룺
# include <math.h>
# include <stdio.h> /* Êýѧº¯Êý¿â */
int main()
{
/* ÓÃs±íʾ¶àÏîʽµÄÖµ£¬ÓÃt±íʾÿһÏîµÄÖµ */
double s, t, x; // ´Ë´¦ÓÃË«¾«¶ÈÉùÃ÷±äÁ¿
int n;
printf ......
Ô´Â룺
# include <stdlib.h>
# include <stdio.h>
int main()
{
int month;
int day;
printf("please input the month number: ");
scanf("%d", &mo ......
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Answer to Exercise 1-7
Write a program to print the value of EOF .
#include <stdio.h>
int main(void)
{
printf("The value of EOF is %d\n\n", EOF);
return 0 ......