wprintf

Performs formatted output from the standard output (stdout). See Chapter 2 for information on format specifiers.

Format 

#include  <wchar.h>

int wprintf  (const wchar_t *format, . . . );

Arguments

format
A pointer to a wide-character string containing the format specifications. For more information about format and conversion specifications and their corresponding arguments, see Chapter 2.
. . .
Optional expressions whose resultant types correspond to conversion specifications given in the format specification.

If no conversion specifications are given, the output sources can be omitted. Otherwise, the function calls must have exactly as many output sources as there are conversion specifications, and the conversion specifications must match the types of the output sources.

Conversion specifications are matched to output sources in left-to- right order. Excess output pointers, if any, are ignored.

Description

This function is equivalent to the fwprintf function with the stdout argument interposed before the wprintf arguments.

Return Values
n  The number of wide characters written. 
Negative value  Indicates an error. The function sets errno to one of the following:

  • EILSEQ - Invalid character detected.

  • EINVAL - Insufficient arguments.

  • ENOMEM - Not enough memory available for conversion.

  • ERANGE - Floating-point calculations overflow.

  • EVMSERR - Nontranslatable VMS error. vaxc$errno contains the VMS error code. This might indicate that conversion to a numeric value failed because of overflow.

The function can also set errno to the following as a result of errors returned from the I/O subsystem:

  • EBADF - The file descriptor is not valid.

  • EIO - I/O error.

  • ENOSPC - No free space on the device containing the file.

  • ENXIO - Device does not exist.

  • EPIPE - Broken pipe.

  • ESPIPE - Illegal seek in a file opened for append.

  • EVMSERR - Nontranslatable VMS error. vaxc$errno contains the VMS error code. This indicates that an I/O error occurred for which there is no equivalent C error code.
 

Previous Page | Next Page | Table of Contents | Index