簡(jiǎn)單的內(nèi)存分配

mikeinshanghai

#include
#include
#include
#define A_MEGABYTE ( 1024 * 1024 )
int main()
{
  char *some_memory;
  int megabyte = A_MEGABYTE;
  int exit_code = EXIT_FAILURE;
  some_memory = (char *)malloc(megabyte); /*malloc返回void *指針，需要轉(zhuǎn)換成char *類型指針*/
  if (some_memory != NULL ) {
sprintf(some_memory, "Hello world!"); /*Hello world寫到some_memory指向的內(nèi)存區(qū)域*/
printf("%s", some_memory);
exit_code = EXIT_SUCCESS;
  }
  exit(exit_code);
}

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本文來自ChinaUnix博客，如果查看原文請(qǐng)點(diǎn)：http://blog.chinaunix.net/u1/51999/showart_417857.html