difference between %lf and %Lf?

[nguyentrang]

Is there any difference between %lf and %Lf?

[hamsterman]

http://www.cplusplus.com/reference/clibrary/cstdio/printf/

l : The argument is interpreted as a long int or unsigned long int for integer specifiers (i, d, o, u, x and X), and as a wide character or wide character string for specifiers c and s.
L : The argument is interpreted as a long double (only applies to floating point specifiers: e, E, f, g and G).

so I assume %lf is the same as %f

[blackcoder41]

so I assume %lf is the same as %f

Maybe, but I guess not for scanf.

[Duthomhas]

For printf(), the "%lf" is not valid -- it should be "%f".
For scanf(), it makes all the difference in the world -- use "%f" for float, "%lf" for double, and "%Lf" for long double.