# OS_VPrintf

## C Specification

  `#include <nitro/os.h>`
  `void OS_VPrintf( const char *fmt, va_list vlist );`

## Arguments

fmt | Character string output format (character string format)
vlist | Variable argument list

## Return Values

None.

## Description

Displays the character string. It is possible to provide a variable argument list following the character string format (character string output format). This function is equivalent to `OS_Printf()` except for the argument format.

This function is compiled with weak symbols. Therefore you can overwrite them with your own function definitions.

This function is used for debugging. It will not be generated in the final ROM version (`FINALROM`).

## See Also

`OS_PutString`, `OS_Printf`

## Revision History

11/25/2004 Added description of weak symbols.
09/10/2004 Initial version