text: 
  #ifndef BASE64_VALUE_FUNCTIONS
  #define BASE64_VALUE_FUNCTIONS
  
  extern char b64File[];
  
  char* values_base64_string(int*, int);
  char** generate_base64_binary(char**, int);
  
  int base64_character_value(char);
  char base64_index_character(int);
  
  char* append_base64_ending(char*, int);
  
  #endif
  