summaryrefslogtreecommitdiff
path: root/Build/source/texk/seetexk/fio.h
diff options
context:
space:
mode:
authorKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
committerKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
commit487ca4806cc046076293cf6cc5fbba0db282bac7 (patch)
tree847b412ab5158dd7bdd7ed7e5a4cc3fbca94be32 /Build/source/texk/seetexk/fio.h
parenta3d3111bfe26b8e5f5bc6049dfb2a4ca2edc7881 (diff)
texk 1
git-svn-id: svn://tug.org/texlive/trunk@1485 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/seetexk/fio.h')
-rw-r--r--Build/source/texk/seetexk/fio.h53
1 files changed, 53 insertions, 0 deletions
diff --git a/Build/source/texk/seetexk/fio.h b/Build/source/texk/seetexk/fio.h
new file mode 100644
index 00000000000..53f2ef8ca81
--- /dev/null
+++ b/Build/source/texk/seetexk/fio.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 1987, 1989 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) ((void) putc((r), fp))
+
+#define PutWord(fp, r) ((void) putc((r) >> 8, fp), \
+ (void) putc((r), fp))
+#define Put3Byte(fp, r) ((void) putc((r) >> 16, fp), \
+ (void) putc((r) >> 8, fp), \
+ (void) putc((r), fp))
+#define PutLong(fp, r) ((void) putc((r) >> 24, fp), \
+ (void) putc((r) >> 16, fp), \
+ (void) putc((r) >> 8, fp), \
+ (void) putc((r), fp))
+
+/*
+ * Function types
+ */
+i32 GetByte(), GetWord(), Get3Byte(), GetLong();