format

Converts a double to a string, using the '.

' as decimal point. To format the number you pass in a printf-style format string. Allowed conversion specifiers are 'e', 'E', 'f', 'F', 'g' and 'G'.

If you just want to want to serialize the value into a string, use to_str.

Parameters:

buffer	A buffer to place the resulting string in
format	The printf-style format to use for the code to use for converting.
buf_len	The length of the buffer.
d	The double to convert

Returns:

The pointer to the buffer with the converted string.