Topic       : Pure C Library Documentation
Author      : John Kormylo
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Subject     : Documentation/Pure C Library
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View Ref-File[ vprintf ]

#include <stdio.h>

int vprintf( const char *format, va_list arg );

  <format> is a string containing text and '%' sequences for
           converting variables into text.
           See printf/scanf Formats.
  <arg> is a variable argument list (see va_list) for the
        variables to be formatted.


Function performs a formatted write to stdout.
It returns the number of characters written or EOF if an error occurs.

See also Standard I/O and Formatting.