format
Description:
[ CCode ( cname = "g_ascii_formatd" , instance_pos = -1 ) ]
public unowned string format (char[] buffer, string format = "%g")
public unowned string format (char[] buffer, string format = "%g")
Converts a `gdouble` 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'.
The format must just be a single format specifier starting with `%`, expecting a `gdouble` argument.
The returned buffer is guaranteed to be nul-terminated.
If you just want to want to serialize the value into a string, use [func@GLib.ascii_dtostr].
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 value to convert |
Returns:
|
the pointer to the buffer with the converted string |