Guardian Native C Library Calls Reference Manual (G06.29+, H06.08+, J06.03+)

vfwprintf(3) Guardian Native C Library Calls Reference Manual
RETURN VALUES
Upon successful completion, this function returns the number of bytes in the output string. Oth-
erwise, a negative value is returned.
ERRORS
The vfwprintf() function fails if stream is unbuffered, or if stream’s buffer needed to be flushed
and the function call caused an underlying write( ) or lseek() function to be invoked. In addi-
tion, if the vfwprintf() function fails, errno is set to one of the following values:
[EAGAIN] The O_NONBLOCK flag is set for the file descriptor underlying stream and the
process would be delayed in the write operation.
[EBADF] The file descriptor underlying stream is not a valid file descriptor open for writ-
ing.
[EFBIG] An attempt was made to write at or beyond the file offset maximum.
[EILSEQ] An invalid wide character was detected.
[EINTR] The operation was interrupted by a signal that was caught, and no data was
transferred.
[EINVAL] There are insufficient arguments.
[EIO] The implementation supports job control; the process is a member of a back-
ground process group attempting to write to its controlling terminal; TOSTOP is
set; the process is neither ignoring nor blocking SIGTTOU; and the process
group of the process is orphaned. This error might also be returned under
implementation-defined conditions.
[ENOMEM] Insufficient storage space was available.
[ENOSPC] There was no free space remaining on the device containing the file.
[ENXIO] A request was made of a nonexistent device, or the request was outside the capa-
bilities of the device.
[EPIPE] An attempt was made to write to a pipe or FIFO that is not open for reading by
any process. A SIGPIPE signal will also be sent to the process.
RELATED INFORMATION
Functions: fprintf(3), printf(3), sprintf(3), vprintf(3), vsprintf(3).
STANDARDS CONFORMANCE
The behavior of this function conforms to the ISO/IEC 9899:1999 specification.
The POSIX standards leave some features to the implementing vendor to define. The following
features are affected in the HP implementation:
• The output of %p conversion is a decimal integer.
The following are HP extensions to the ISO/IEC 9899:1999 specification:
• The conversion specifier L followed by a d, i, o, u, x,orX conversion specifier indicates
that the argument will be treated as a long long or an unsigned long long, which is a 64-
bit integer data type.
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