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
ÒÔÇ°Ôø¾×ܽá¹ýһƪ(http://www.cppblog.com/franksunny/archive/2007/11/29/37510.html
)£¬¹ØÓÚÔÚ
C
ÖÐÈçºÎµ÷ÓÃ
C++
µÄ´úÂ룬µ±Ê±²¢Î´×öÍêÈ«µÄÕ¹¿ª£¬Ö»ÊǼòµ¥µÄ×öÁËϵ÷ÊÔ£¬×î½ü¿´µ½Ò»¸öÌâĿҪÇóʵÏÖ
C
ºÍ
C++
ÖдúÂëµÄ»¥Ïàµ÷Óã¬Æä½á¹ûËäÈ»¶¼ÊÇͨ¹ý
extern “C”
À´ÊµÏÖ
£¬µ«ÊǾßÌ廹ÊÇÓÐЩ²î±ðµÄ¡ ......
- ҪʹÓöÏÑÔ¶Ôº¯Êý²ÎÊý½øÐÐÈ·ÈÏ
- ΪÁ˲»±ØÒªµÄ¿ªÏú£¬¿ÉÒÔ½öʹÓöÏÑÔ£¬¶ø²»Òªreturn
ÍøÉÏÓÐÈËдµÄstrcpy´úÂ룬×öÁËÌ«¶àµÄ³ö´í´¦Àí£¬µ¼ÖÂÐÔÄܵÍÏ£¬Æäʵû±ØÒª£¬ÓÃassert¾ÍÐÐÁË£¬ÕâÑùÔÚdebugģʽÏÂÄܲ¶×½´íÎó£¬releaseÏÂÓÖ²»Ó°ÏìÐÔÄÜ¡£
- ÊéÉÏÌṩµÄmemcpyµÄ·¶Àý
void memcpy(void* pvT ......
Visual C++6.0(5.0)¿ª·¢¹¤¾ß¹¦Äܷdz£Ç¿´ó£¬µ«ÊǶÔÓÚ³õѧÕßÀ´Ëµ£¬È´Óкܶàϸ½ÚµÄÎÊÌâÐèҪעÒâ¡£×÷ÕßËѼ¯ÕûÀíÁËÒÔÏÂһЩʵÓÃС¼¼ÇÉ£¬Ï£Íû¶Ô³õѧÕßÓÐËù°ïÖú¡£
1:ʹÓÃvc¿ª·¢ÏîĿʱ£¬³£»áÓöµ½ÕâÖÖÇé¿ö£º
¼´Ã÷Ã÷Ö»¸Ä¶¯ÁËÒ»¸öÎļþ£¬È´Òª°ÑÕû¸öÏîĿȫ²¿ÖØÐ±àÒëÁ¬½ÓÒ»´Î¡£¸Õ¸ÕÁ¬½ÓºÃ£¬Ò»ÔËÐУ¬ÓÖÌáʾ ......
ΪʲôÐèҪʹÓÃextern "C"ÄØ£¿C++Ö®¸¸ÔÚÉè¼ÆC++֮ʱ£¬¿¼Âǵ½µ±Ê±ÒѾ´æÔÚÁË´óÁ¿µÄC´úÂ룬ΪÁËÖ§³ÖÔÀ´µÄC´úÂëºÍÒѾдºÃC¿â£¬ÐèÒªÔÚC++Öо¡¿ÉÄܵÄÖ§³ÖC£¬¶øextern "C"¾ÍÊÇÆäÖеÄÒ»¸ö²ßÂÔ¡£
¡¡¡¡ÊÔÏëÕâÑùµÄÇé¿ö:Ò»¸ö¿âÎļþÒѾÓÃCдºÃÁ˶øÇÒÔËÐеúÜÁ¼ºÃ£¬Õâ¸öʱºòÎÒÃÇÐèҪʹÓÃÕâ¸ö¿âÎļþ£ ......