diff options
Diffstat (limited to 'lib/libF77/lbitbits.c')
-rw-r--r-- | lib/libF77/lbitbits.c | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/lib/libF77/lbitbits.c b/lib/libF77/lbitbits.c deleted file mode 100644 index 75e9f9c..0000000 --- a/lib/libF77/lbitbits.c +++ /dev/null @@ -1,62 +0,0 @@ -#include "f2c.h" - -#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)); - } |