要调用下面的add函数  比如这个函数在0x04008000这地方  那么把下面改改
fn1=(pfn)0x04008000;
(*fn1)(1,5);   
这样行吗？
  

#include <stdio.h>
typedef int (*pfn) (int,int);

int add(int a,int b){
   int c;
   c=a+b;       
   printf("\n%d\n",c);
}

main()
{
  // printf("ddd");   只要把这行注释"//"去掉 就有N多错误         这是怎么回事？  
   pfn fn1;
   fn1=add;
   printf("func start\n");       
   (*fn1)(1,5);
   getchar();
}          

--------------------Configuration: add - Win32 Release--------------------
Compiling...
add.c
D:\11111\add\add.c(13) : error C2275: 'pfn' : illegal use of this type as an expression
        D:\11111\add\add.c(2) : see declaration of 'pfn'
D:\11111\add\add.c(13) : error C2146: syntax error : missing ';' before identifier 'fn1'
D:\11111\add\add.c(13) : error C2065: 'fn1' : undeclared identifier
D:\11111\add\add.c(14) : warning C4047: '=' : 'int ' differs in levels of indirection from 'int (__cdecl *)(int ,int )'
D:\11111\add\add.c(16) : error C2100: illegal indirection
D:\11111\add\add.c(16) : error C2064: term does not evaluate to a function
Error executing cl.exe.

add.obj - 5 error(s), 1 warning(s)

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