diff options
Diffstat (limited to 'lib/std/bigint.myr')
| -rw-r--r-- | lib/std/bigint.myr | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/lib/std/bigint.myr b/lib/std/bigint.myr index 45170dd..129890c 100644 --- a/lib/std/bigint.myr +++ b/lib/std/bigint.myr @@ -28,6 +28,7 @@ pkg std = const bigdup : (a : bigint# -> bigint#) const bigassign : (d : bigint#, s : bigint# -> bigint#) const bigmove : (d : bigint#, s : bigint# -> bigint#) + const bigsteal : (d : bigint#, s : bigint# -> bigint#) const bigparse : (s : byte[:] -> option(bigint#)) const bigclear : (a : bigint# -> bigint#) const bigbfmt : (b : byte[:], a : bigint#, base : int -> size) @@ -162,6 +163,12 @@ const bigmove = {d, s -> d } +const bigsteal = {d, s + bigmove(d, s); + bigfree(s) + -> d +} + const bigclear = {v std.slfree(v.dig) v.sign = 0 @@ -547,7 +554,7 @@ const bigdiv = {a : bigint#, b : bigint# -> bigint# (q, r) = bigdivmod(a, b) bigfree(r) - -> bigmove(a, q) + -> bigsteal(a, q) } const bigmod = {a : bigint#, b : bigint# -> bigint# @@ -555,7 +562,7 @@ const bigmod = {a : bigint#, b : bigint# -> bigint# (q, r) = bigdivmod(a, b) bigfree(q) - -> bigmove(a, r) + -> bigsteal(a, r) } /* a /= b */ @@ -665,6 +672,7 @@ const bigdivmod = {a : bigint#, b : bigint# -> (bigint#, bigint#) /* undo the biasing for remainder */ bigshri(u, shift) trim(q) + bigfree(v) -> (trim(q), trim(u)) } @@ -698,7 +706,7 @@ const bigmodpow = {base, exp, mod bigmul(base, base) bigmod(base, mod) ;; - -> bigmove(base, r) + -> bigsteal(base, r) } /* returns the number of leading zeros */ |