这是我一开始写的
char *mycat(char *a,const char *b)
{
int i=0;
int lena,lenb;
lena=strlen(a);
lenb=strlen(b);
do
{
a[lena]=b[i];
lena++;
i++;
}while(i<lenb);
return a;
}
这是查阅资料后抄的:
char *mystrcat(char *s1,const char *s2){
char *cp = s1;
while( *cp )
cp++;
while( *cp++ = *s2++ ) ;
return s1;
}
然而在编译过程中遇到了:warning: suggest parentheses around assignment used as truth value [-Wparentheses]|
在查阅CSDN的文章后,把while(*cp++ = *s2++);的判断语句加上括号就可以了。
感谢:gcc实践(1): warning: suggest parentheses around assignment used as truth value [-Wparentheses]