自己写的一个memset函数

写了一个memset函数，仅供参考：

#include <stdio.h>#include <string.h>void* mymemset(void* buffer,int c,int size);struct TEST{int m;char n;float g;struct TEST *t;double d;};int main(void){int arr[] = {1,2,3,4,5};struct TEST s;int i = 0;char *cp;printf("After execute memset:\n");memset(&s,0,sizeof(s));printf("%d %c %f %p %lf\n",s.m,s.n,s.g,s.t,s.d);cp = (char*)memset(arr,8,sizeof(arr));for (;i < 5;i ++){printf("%f ",*cp++);}putchar('\n');printf("After execute mymemset:\n");mymemset(&s,0,sizeof(s));printf("%d %c %f %p %lf\n",s.m,s.n,s.g,s.t,s.d);cp = (char*)mymemset(arr,8,sizeof(arr));for (i = 0;i < 5;i ++){printf("%f ",*cp++);}getchar();return 0;}void* mymemset(void* buffer,int c,int size){if (buffer == NULL){printf("Point Exception!\n");  getchar();  exit(0);  }else{char* bptr = (char*)buffer;int i = 0;for(;i < size;i ++){*bptr ++ = c;}return buffer;}}