Add graph references

2026-06-28 13:49:01 +01:00
parent 0a9807e448
commit a11edf0c53
2578 changed files with 868045 additions and 0 deletions
@@ -0,0 +1,68 @@
+#include "f2c.h"
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef LONGBITS
+#define LONGBITS 32
+#endif
+
+ integer
+#ifdef KR_headers
+lbit_bits(a, b, len) integer a, b, len;
+#else
+lbit_bits(integer a, integer b, integer len)
+#endif
+{
+	/* Assume 2's complement arithmetic */
+
+	unsigned long x, y;
+
+	x = (unsigned long) a;
+	y = (unsigned long)-1L;
+	x >>= b;
+	y <<= len;
+	return (integer)(x & ~y);
+	}
+
+ integer
+#ifdef KR_headers
+lbit_cshift(a, b, len) integer a, b, len;
+#else
+lbit_cshift(integer a, integer b, integer len)
+#endif
+{
+	unsigned long x, y, z;
+
+	x = (unsigned long)a;
+	if (len <= 0) {
+		if (len == 0)
+			return 0;
+		goto full_len;
+		}
+	if (len >= LONGBITS) {
+ full_len:
+		if (b >= 0) {
+			b %= LONGBITS;
+			return (integer)(x << b | x >> LONGBITS -b );
+			}
+		b = -b;
+		b %= LONGBITS;
+		return (integer)(x << LONGBITS - b | x >> b);
+		}
+	y = z = (unsigned long)-1;
+	y <<= len;
+	z &= ~y;
+	y &= x;
+	x &= z;
+	if (b >= 0) {
+		b %= len;
+		return (integer)(y | z & (x << b | x >> len - b));
+		}
+	b = -b;
+	b %= len;
+	return (integer)(y | z & (x >> b | x << len - b));
+	}
+#ifdef __cplusplus
+}
+#endif