printf

library The standard function in the C programming

language library for printing formatted output.

The first argument is a format string which may contain

ordinary characters which are just printed and "conversion

specifications" - sequences beginning with '%' such as %6d

which describe how the other arguments should be printed, in

this case as a six-character decimal integer padded on the

right with spaces.

Possible conversion specifications are d, i or u (decimal

integer), o (octal), x, X or p (hexadecimal), f

(floating-point), e or E (mantissa and exponent,

e.g. 1.23E-22), g or G (f or e format as appropriate to the

value printed), c (a single character), s (a string), %

(i.e. %% - print a % character). d, i, f, e, g are signed,

the rest are unsigned.

The variant fprintf prints to a given output stream and

sprintf stores what would be printed in a string variable.

Unix manual page: printf(3).

(1996-12-08)