View Compilation Error

0_0_37858735_7271.cpp: In function 'long long int read()':
0_0_37858735_7271.cpp:11:12: error: expected ')' before 'eqeq'
 #define eq eq##eq
            ^
0_0_37858735_7271.cpp:15:39: note: in expansion of macro 'eq'
  while(! isdigit(ch = getchar())) (ch eq '-') && (f = -f)
                                       ^
0_0_37858735_7271.cpp:16:79: error: expected ';' before ')' token
  for(x = ch ^ 48; isdigit(ch = getchar()); x = (x << 3) + (x << 1) + (ch ^ 48));
                                                                               ^