内存分配函数

[c]代码库

#include <stdio.h> 
#include <string.h> 
#include <alloc.h> 
#include <process.h> 

int main(void) 
{ 
   char *str; 

   /* allocate memory for string */ 
   /* This will generate an error when compiling */ 
   /* with C++, use the new operator instead. */ 
   if ((str = malloc(10)) == NULL) 
   { 
      printf("Not enough memory to allocate buffer\n"); 
      exit(1);  /* terminate program if out of memory */ 
   } 

   /* copy "Hello" into string */ 
   strcpy(str, "Hello"); 

   /* display string */ 
   printf("String is %s\n", str); 

   /* free memory */ 
   free(str); 

   return 0; 
}