C-style formatting for streambuf objects
The GNU streambuf class supports printf-like formatting and scanning. See also printf, fprintf, sprintf.
int streambuf::vform (const char * format, ...) Method
Similar to fprintf (file, format, ...). The format is a printf-style format control string, which is used to format the (variable number of) arguments, printing the result on the this streambuf. The result is the number of characters printed.
int streambuf::vform (const char * format, va_list args) Method
Similar to vfprintf (file, format, args). The format is a printf-style format control string, which is used to format the argument list args, printing the result on the this streambuf. The result is the number of characters printed. See also vprintf, vfprintf, vsprintf.
int streambuf::scan (const char * format, ...) Method
Similar to fscanf (file, format, ...). The format is a scanf-style format control string, which is used to read the (variable number of) arguments from the this streambuf. The result is the number of items assigned, or EOF in case of input failure before any conversion. See also scanf, fscanf, sscanf.
int streambuf::vscan (const char * format, va_list args) Method
Like streambuf::scan, but takes a single va_list argument.