From 249866e3d1e11dc72eaa1305f4bb479ded92ef38 Mon Sep 17 00:00:00 2001
From: Jannis Hoffmann <jannis@fehcom.de>
Date: Tue, 9 Jul 2024 13:58:20 +0200
Subject: reorganized file structure

Moved c files into src/.
Corrected VERSION file.
Removed BUILD and FILES.
---
 src/byte.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 src/byte.c

(limited to 'src/byte.c')

diff --git a/src/byte.c b/src/byte.c
new file mode 100644
index 0000000..c9d6d23
--- /dev/null
+++ b/src/byte.c
@@ -0,0 +1,99 @@
+#include "byte.h"
+
+/**
+	@file	byte.c
+	@author djb
+	@brief byte manipulation functions
+*/
+
+unsigned int byte_chr(char *s,register unsigned int n,int c)
+{
+  register char ch;
+  register char *t;
+
+  ch = c;
+  t = s;
+  for (;;) {
+    if (!n) { break; } if (*t == ch) { break; } ++t; --n;
+    if (!n) { break; } if (*t == ch) { break; } ++t; --n;
+    if (!n) { break; } if (*t == ch) { break; } ++t; --n;
+    if (!n) { break; } if (*t == ch) { break; } ++t; --n;
+  }
+  return t - s;
+}
+
+void byte_copy(register char *to,register unsigned int n,register char *from)
+{
+  for (;;) {
+    if (!n) { return; } *to++ = *from++; --n;
+    if (!n) { return; } *to++ = *from++; --n;
+    if (!n) { return; } *to++ = *from++; --n;
+    if (!n) { return; } *to++ = *from++; --n;
+  }
+}
+
+void byte_copyr(register char *to,register unsigned int n,register char *from)
+{
+  to += n;
+  from += n;
+  for (;;) {
+    if (!n) { return; } *--to = *--from; --n;
+    if (!n) { return; } *--to = *--from; --n;
+    if (!n) { return; } *--to = *--from; --n;
+    if (!n) { return; } *--to = *--from; --n;
+  }
+}
+
+int byte_diff(register char *s,register unsigned int n,register char *t)
+{
+  for (;;) {
+    if (!n) { return 0; } if (*s != *t) { break; } ++s; ++t; --n;
+    if (!n) { return 0; } if (*s != *t) { break; } ++s; ++t; --n;
+    if (!n) { return 0; } if (*s != *t) { break; } ++s; ++t; --n;
+    if (!n) { return 0; } if (*s != *t) { break; } ++s; ++t; --n;
+  }
+  return ((int)(unsigned int)(unsigned char) *s)
+       - ((int)(unsigned int)(unsigned char) *t);
+}
+
+unsigned int byte_rchr(char *s,register unsigned int n,int c)
+{
+  register char ch;
+  register char *t;
+  register char *u;
+
+  ch = c;
+  t = s;
+  u = 0;
+  for (;;) {
+    if (!n) { break; } if (*t == ch) { u = t; } ++t; --n; 
+    if (!n) { break; } if (*t == ch) { u = t; } ++t; --n; 
+    if (!n) { break; } if (*t == ch) { u = t; } ++t; --n;
+    if (!n) { break; } if (*t == ch) { u = t; } ++t; --n;
+  }
+  if (!u) { u = t; }
+  return u - s;
+}
+
+void byte_zero(char *s,register unsigned int n)
+{
+  for (;;) {
+    if (!n) { break; } *s++ = 0; --n;
+    if (!n) { break; } *s++ = 0; --n;
+    if (!n) { break; } *s++ = 0; --n;
+    if (!n) { break; } *s++ = 0; --n;
+  }
+}
+
+void byte_fill(char *s,register unsigned int n,const int c)
+{
+  register char ch;
+  
+  ch = c;
+  for (;;) {
+    if (!n) { break; } *s++ = ch; --n;
+    if (!n) { break; } *s++ = ch; --n;
+    if (!n) { break; } *s++ = ch; --n;
+    if (!n) { break; } *s++ = ch; --n;
+  }
+}
-- 
cgit v1.2.3