View Compilation Error

0_0_37858737_25433.cpp: In function 'long long int read()':
0_0_37858737_25433.cpp:14:2: error: expected ';' before 'for'
  for(x = ch ^ 48; isdigit(ch = getchar()); x = (x << 3) + (x << 1) + (ch ^ 48));
  ^
0_0_37858737_25433.cpp:14:79: error: expected ';' before ')' token
  for(x = ch ^ 48; isdigit(ch = getchar()); x = (x << 3) + (x << 1) + (ch ^ 48));
                                                                               ^