View Compilation Error

0_0_22131445_8982.cpp: In function 'char fastIO::nc()':
0_0_22131445_8982.cpp:20:25: error: invalid operands of types 'char*' and 'int' to binary 'operator<<'
     #define BUF_SIZE 1<<15
                         ^
0_0_22131445_8982.cpp:26:43: note: in expansion of macro 'BUF_SIZE'
         static char buf[BUF_SIZE],*p1=buf+BUF_SIZE,*pend=buf+BUF_SIZE;
                                           ^
0_0_22131445_8982.cpp:27:17: error: 'pend' was not declared in this scope
         if (p1==pend){
                 ^
0_0_22131445_8982.cpp: In constructor 'fastIO::Ostream_fwrite::Ostream_fwrite()':
0_0_22131445_8982.cpp:20:25: error: invalid operands of types 'char*' and 'int' to binary 'operator<<'
     #define BUF_SIZE 1<<15
                         ^
0_0_22131445_8982.cpp:124:65: note: in expansion of macro 'BUF_SIZE'
         Ostream_fwrite(){buf=new char[BUF_SIZE];p1=buf;pend=buf+BUF_SIZE;}
                                                                 ^