cʵÏֵĶÁ´óÎļþ·½·¨£¨Ô´´úÂ룩
static char *file2memory(FILE *file, long *size)
{
char buffer[1024];
char *string=NULL;
char *newstring=NULL;
long len=0;
long stringlen=0;
if(file) {
while((len = fread(buffer, 1, sizeof(buffer), file))) {
if(string) {
newstring = (char*)realloc(string, len+stringlen+1);
if(newstring)
string = newstring;
else
break; /* no more strings attached! :-) */
}
else
string = (char*)malloc(len+1);
memcpy(&string[stringlen], buffer, len);
stringlen+=len;
}
if (string) {
string[stringlen] = 0;
}
*size = stringlen;
return string;
}
else
return NULL; /* no string */
}
Ïà¹ØÎĵµ£º
C/C++ÖÐStaticµÄ×÷ÓÃÏêÊö
1.ÏÈÀ´½éÉÜËüµÄµÚÒ»ÌõÒ²ÊÇ×îÖØÒªµÄÒ»Ìõ£ºÒþ²Ø¡£
µ±ÎÒÃÇͬʱ±àÒë¶à¸öÎļþʱ£¬ËùÓÐδ¼Óstaticǰ׺µÄÈ«¾Ö±äÁ¿ºÍº¯Êý¶¼¾ßÓÐÈ«¾Ö¿É¼ûÐÔ¡£ÎªÀí½âÕâ¾ä»°£¬ÎÒ¾ÙÀýÀ´ËµÃ÷¡£ÎÒÃÇҪͬʱ±àÒëÁ½¸öÔ´Îļþ£¬Ò»¸öÊÇa.c£¬ÁíÒ»¸öÊÇmain.c.
ÏÂÃæÊÇa.cµÄÄÚÈÝ£º
char a = 'A'; // global variable
void ......
ÉîÈëÀí½â²¢Ó¦ÓÃC51¶Ô±ê×¼ANSICµÄÀ©Õ¹ÊÇѧϰC51µÄ¹Ø¼üÖ®Ò»¡£ÒòΪ´ó¶àÊýÀ©Õ¹¹¦Äܶ¼ÊÇÖ±½ÓÕë¶Ô8051ϵÁÐCPUÓ²¼þµÄ¡£´óÖÂÓÐÒÔÏÂ8 Àࣺ 8051´æ´¢ÀàÐͼ°´æ´¢ÇøÓòl; ´æ´¢Ä£Ê½l´æ´¢Æ÷ÀàÐÍÉùÃ÷l±äÁ¿ÀàÐÍÉùÃ÷l λ±äÁ¿ÓëλѰַl ÌØÊ⹦ÄܼĴæÆ÷(SFR)l C51Ö¸Õël º¯ÊýÊôÐÔ¾ßÌå˵Ã÷ÈçÏÂ(8031ΪȱʡCPU)¡£
µÚÒ»½Ú Keil C ......
ÔÚCÓïÑÔÀȫ¾Ö±äÁ¿Èç¹û²»³õʼ»¯µÄ»°£¬Ä¬ÈÏΪ0£¬Ò²¾ÍÊÇ˵ÔÚÈ«¾Ö¿Õ¼äÀ
int x =0; ¸ú int x; µÄЧ¹û¿´ÆðÀ´ÊÇÒ»ÑùµÄ¡£µ«ÆäʵÕâÀïÃæµÄ²î±ðºÜ´ó£¬Ç¿ÁÒ½¨Òé´ó¼ÒËùÓеÄÈ«¾Ö±äÁ¿¶¼Òª³õʼ»¯£¬ËûÃǵÄÖ÷Òª²î±ðÈçÏ£º
±àÒëÆ÷ÔÚ±àÒëµÄʱºòÕë¶ÔÕâÁ½ÖÖÇé¿ö»á²úÉúÁ½ÖÖ·ûºÅ·ÅÔÚÄ¿±êÎļþµÄ·ûºÅ±íÖУ¬¶ÔÓÚ³õʼ»¯µÄ£¬½ÐÇ¿·ûºÅ£¬Î´³õʼ»¯µÄ ......
ÔÎĵØÖ·£ºhttp://westsoftware.blog.163.com/blog/static/2609410920091953456841/
×î½üÒ»Ö±ÔÚ¿´Andrew KoeningдµÄÊé¼®£¬¿ÉÒÔ˵ѧϰC/C++»òÕß´ÓÊÂÕâ·½ÃæµÄ¿ª·¢µÄÈËÔ±·Ç³£ÖµµÃÒ»¿´µÄÊé¼®£¬ÕâÀïÎÒÍƼö¿´¿´¡¶CÏÝÚåÓëȱÏÝ¡·Ó롶C/C++³Á˼¼¡·¡£
ÕâÀïÏÈÀ´¿´¿ ......
int main()
{
printf(&unix["\021%six\012\0"], (unix)["have"] + "fun" - 0x60);
}
gcc -S±àÒë³É»ã±à´úÂëÈçÏÂ:
.file "test.c"
.section .rodata
.LC0:
&nbs ......