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Get a word from a stream
#include <stdio.h>
int getw( FILE* stream );
- stream
- The stream that you want to read a word from.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
|
This function is in libc.a, but not in libc.so
(in order to save space). |
The getw() function returns the next word (i.e. integer)
from the named input stream. This function increments
the associated file pointer, if defined, to point to the
next word. The size of a word is the size of an integer, and
varies from machine to machine. The getw() function assumes
no special alignment in the file.
The next word, or the constant EOF at the end-of-file or
on an error; it sets the EOF or error indicator of the stream.
|
Use
feof()
or
ferror()
to distinguish an end-of-file condition from an error. |
- EOVERFLOW
- The file is a regular file, and an attempt was made to read at or
beyond the offset maximum associated with the corresponding stream.
Legacy Unix
Safety: | |
Cancellation point |
Yes |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |
Because of possible differences in word length and byte ordering, files
written using
putw()
are implementation-dependent, and might not
be read correctly using getw() on a different processor.
fclose(),
feof(),
ferror(),
fgetc(),
flockfile(),
fopen(),
fread(),
getc(),
getc_unlocked(),
getchar(),
getchar_unlocked(),
gets(),
putc(),
putw(),
scanf(),
ungetc(),
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