?? vf
字號:
@c ----------------------------------------------------------------------
@node vfork, unix
@heading @code{vfork}
@subheading Description
This function is provided to assist in porting Unix programs only. It
always fails.
@subheading Return Value
-1
@c ----------------------------------------------------------------------
@node vfprintf, stdio
@heading @code{vfprintf}
@subheading Syntax
@example
#include <stdio.h>
#include <stdarg.h>
int vfprintf(FILE *file, const char *format, va_list arguments);
@end example
@subheading Description
Sends formatted output from the @var{arguments} to the @var{file}.
@xref{printf}
@subheading Return Value
The number of characters written.
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