View Compilation Error

0_0_15512530_20335.cpp: In function 'bool getVarName(int&, std::string&)':
0_0_15512530_20335.cpp:96:58: error: expected primary-expression at end of input
  while (s[i] && isalpha(s[i]) || isdigit(s[i])) var_name += 
                                                          ^
0_0_15512530_20335.cpp:96:58: error: expected '}' at end of input