模拟实现 strcat

版权声明：Sock的blog, 可以偷看但不可以偷走哦 https://blog.csdn.net/qq_42957923/article/details/86672767

函数

char* Strcat(char* dest, const char* src) {    
  assert(dest != NULL);    
  assert(src != NULL);    
  char* dp = dest;    
  while(*dp != '\0') {    
    ++dp;    
  }    
  while (*src != '\0') {    
    *dp++ = *src++;    
  }    
  *dp = *src;    
  return dest;    
}    

测试

#include <stdio.h>    
#include <assert.h>  
int main() {
  char str1[256] = "I love ";                                                                                                           
  char str2[] = "you";
  Strcat(str1, str2);                     
  printf("%s\n", str1);                   
  return 0;                               
}           

效果图