View Compilation Error

0_0_29050053_29781.cpp: In function 'void read(T&)':
0_0_29050053_29781.cpp:30:45: error: expected ';' at end of input
  while(ch < '0' || ch > '9') {if(ch == '-') f 
                                             ^
0_0_29050053_29781.cpp:30:45: error: expected '}' at end of input
0_0_29050053_29781.cpp:30:45: error: expected '}' at end of input