60 lines
1.6 KiB
Groff
60 lines
1.6 KiB
Groff
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GETC(3) Minix Programmer's Manual GETC(3)
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NAME
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getc, getchar, fgetc, getw - get character or word from stream
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SYNOPSIS
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#include <stdio.h>
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int getc(FILE *stream)
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int getchar(void)
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int fgetc(FILE *stream)
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int getw(FILE *stream)
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DESCRIPTION
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Getc returns the next character from the named input stream.
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Getchar() is identical to getc(stdin).
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Fgetc behaves like getc, but is a genuine function, not a macro; it may
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be used to save object text.
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Getw returns the next int from the named input stream. It returns the
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constant EOF upon end of file or error, but since that is a good integer
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value, feof and ferror(3) should be used to check the success of getw.
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Getw assumes no special alignment in the file.
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SEE ALSO
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clearerr(3), fopen(3), putc(3), gets(3), scanf(3), fread(3), ungetc(3).
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DIAGNOSTICS
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These functions return the integer constant EOF at end of file, upon read
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error, or if an attempt is made to read a file not opened by fopen. The
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end-of-file condition is remembered, even on a terminal, and all
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subsequent attempts to read will return EOF until the condition is
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cleared with clearerr(3).
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BUGS
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Because it is implemented as a macro, getc treats a stream argument with
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side effects incorrectly. In particular, `getc(*f++);' doesn't work
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sensibly.
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May 14, 1986 1
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