int revstr(char *str) { char ch; char *start = str; char *end = str; if(str == NULL) return -1; while(*end) end++; end -= 1; while(start < end) { ch = *start; *start++ = *end; *end-- = ch; } return 0; }
posted on 2013-09-18 15:40 swblog 阅读(96) 评论(0) 编辑 收藏 举报