GNU Info

(libc.info)Table of Output Conversions

---

Next: Integer Conversions Prev: Output Conversion Syntax Up: Formatted Output

---

Enter node , (file) or (file)node

Table of Output Conversions
---------------------------

   Here is a table summarizing what all the different conversions do:

`%d', `%i'
     Print an integer as a signed decimal number.  Note: Integer
     Conversions, for details.  `%d' and `%i' are synonymous for
     output, but are different when used with `scanf' for input (Note:
     Table of Input Conversions).

`%o'
     Print an integer as an unsigned octal number.  Note: Integer
     Conversions, for details.

`%u'
     Print an integer as an unsigned decimal number.  Note: Integer
     Conversions, for details.

`%x', `%X'
     Print an integer as an unsigned hexadecimal number.  `%x' uses
     lower-case letters and `%X' uses upper-case.  Note: Integer
     Conversions, for details.

`%f'
     Print a floating-point number in normal (fixed-point) notation.
     Note: Floating-Point Conversions, for details.

`%e', `%E'
     Print a floating-point number in exponential notation.  `%e' uses
     lower-case letters and `%E' uses upper-case.  Note: Floating-Point
     Conversions, for details.

`%g', `%G'
     Print a floating-point number in either normal or exponential
     notation, whichever is more appropriate for its magnitude.  `%g'
     uses lower-case letters and `%G' uses upper-case.  Note:
     Floating-Point Conversions, for details.

`%a', `%A'
     Print a floating-point number in a hexadecimal fractional notation
     which the exponent to base 2 represented in decimal digits.  `%a'
     uses lower-case letters and `%A' uses upper-case.  Note:
     Floating-Point Conversions, for details.

`%c'
     Print a single character.  Note: Other Output Conversions.

`%C'
     This is an alias for `%lc' which is supported for compatibility
     with the Unix standard.

`%s'
     Print a string.  Note: Other Output Conversions.

`%S'
     This is an alias for `%ls' which is supported for compatibility
     with the Unix standard.

`%p'
     Print the value of a pointer.  Note: Other Output Conversions.

`%n'
     Get the number of characters printed so far.  Note: Other Output
     Conversions.  Note that this conversion specification never
     produces any output.

`%m'
     Print the string corresponding to the value of `errno'.  (This is
     a GNU extension.)  Note: Other Output Conversions.

`%%'
     Print a literal `%' character.  Note: Other Output Conversions.

   If the syntax of a conversion specification is invalid, unpredictable
things will happen, so don't do this.  If there aren't enough function
arguments provided to supply values for all the conversion
specifications in the template string, or if the arguments are not of
the correct types, the results are unpredictable.  If you supply more
arguments than conversion specifications, the extra argument values are
simply ignored; this is sometimes useful.