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Man Pages


Manual Reference Pages  -  FGETWS (3)

NAME

fgetws - get a line of wide characters from a stream

CONTENTS

Library
Synopsis
Description
Return Values
Errors
See Also
Standards

LIBRARY


.Lb libc

SYNOPSIS


.In stdio.h
.In wchar.h wchar_t * fgetws wchar_t * restrict ws int n FILE * restrict fp

DESCRIPTION

The fgetws function reads at most one less than the number of characters specified by n from the given fp and stores them in the wide character string ws. Reading stops when a newline character is found, at end-of-file or error. The newline, if any, is retained. If any characters are read and there is no error, a \0’ character is appended to end the string.

RETURN VALUES

Upon successful completion, fgetws returns ws. If end-of-file occurs before any characters are read, fgetws returns NULL and the buffer contents remain unchanged. If an error occurs, fgetws returns NULL and the buffer contents are indeterminate. The fgetws function does not distinguish between end-of-file and error, and callers must use feof(3) and ferror(3) to determine which occurred.

ERRORS

The fgetws function will fail if:
[EBADF]
  The given fp argument is not a readable stream.
[EILSEQ]
  The data obtained from the input stream does not form a valid multibyte character.

The function fgetws may also fail and set errno for any of the errors specified for the routines fflush(3), fstat(2), read(2), or malloc(3).

SEE ALSO

feof(3), ferror(3), fgets(3)

STANDARDS

The fgetws function conforms to -p1003.1-2001.
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