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Sprite 1984 - 1993
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fio.h
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1989-06-15
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/*
* Copyright (c) 1987 University of Maryland Department of Computer Science.
* All rights reserved. Permission to copy for any purpose is hereby granted
* so long as this copyright notice remains intact.
*/
/*
* File I/O: numbers.
*
* We deal in fixed format numbers and (FILE *)s here.
* For pointer I/O, see pio.h.
*
* N.B.: These do the `wrong thing' at EOF. It is imperative
* that the caller add appropriate `if (feof(fp))' statements.
*/
/*
* Get one unsigned byte. Note that this is a proper expression.
* The reset have more limited contexts, and are therefore OddLy
* CapItaliseD.
*/
#define fgetbyte(fp) (getc(fp))
/*
* Get a two-byte unsigned integer, a three-byte unsigned integer,
* or a four-byte signed integer.
*/
#define fGetWord(fp, r) ((r) = getc(fp) << 8, (r) |= getc(fp))
#define fGet3Byte(fp,r) ((r) = getc(fp) << 16, (r) |= getc(fp) << 8, \
(r) |= getc(fp))
#define fGetLong(fp, r) ((r) = getc(fp) << 24, (r) |= getc(fp) << 16, \
(r) |= getc(fp) << 8, (r) |= getc(fp))
/*
* Fast I/O write (and regular write) macros.
*/
#define putbyte(fp, r) (putc((r), fp))
#define PutWord(fp, r) (putc((r) >> 8, fp), putc((r), fp))
#define Put3Byte(fp, r) (putc((r) >> 16, fp), putc((r) >> 8, fp), \
putc((r), fp))
#define PutLong(fp, r) (putc((r) >> 24, fp), putc((r) >> 16, fp), \
putc((r) >> 8, fp), putc((r), fp))
/*
* Function types
*/
i32 GetByte(), GetWord(), Get3Byte(), GetLong();