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authorSverker Eriksson <[email protected]>2015-09-02 15:43:57 +0200
committerSverker Eriksson <[email protected]>2015-09-02 15:43:57 +0200
commit6e75676652d87d78041a9db11b088b33ad7ef672 (patch)
treebdfab5e00f4059950c927a5ca748efb9965c782c /erts/emulator/beam/big.c
parent0c52e3c18da16dbb896871865b71093b8c5617c4 (diff)
parent3af9e6ef9bd6a9e9faf0e5bf683f4f1c5c0c0ca9 (diff)
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Merge branch 'maint' into sverk/trace-process_dump-matchstate
Conflicts: erts/emulator/beam/erl_printf_term.c erts/emulator/beam/erl_term.c erts/emulator/beam/utils.c
Diffstat (limited to 'erts/emulator/beam/big.c')
-rw-r--r--erts/emulator/beam/big.c59
1 files changed, 50 insertions, 9 deletions
diff --git a/erts/emulator/beam/big.c b/erts/emulator/beam/big.c
index d1e46e3063..044bf6a34e 100644
--- a/erts/emulator/beam/big.c
+++ b/erts/emulator/beam/big.c
@@ -3,16 +3,17 @@
*
* Copyright Ericsson AB 1996-2014. All Rights Reserved.
*
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
*
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*
* %CopyrightEnd%
*/
@@ -1577,6 +1578,46 @@ Eterm erts_sint64_to_big(Sint64 x, Eterm **hpp)
return make_big(hp);
}
+Eterm
+erts_uint64_array_to_big(Uint **hpp, int neg, int len, Uint64 *array)
+{
+ Uint *headerp;
+ int i, pot_digits, digits;
+
+ headerp = *hpp;
+
+ pot_digits = digits = 0;
+ for (i = 0; i < len; i++) {
+#if defined(ARCH_32) || HALFWORD_HEAP
+ Uint low_val = array[i] & ((Uint) 0xffffffff);
+ Uint high_val = (array[i] >> 32) & ((Uint) 0xffffffff);
+ BIG_DIGIT(headerp, pot_digits) = low_val;
+ pot_digits++;
+ if (low_val)
+ digits = pot_digits;
+ BIG_DIGIT(headerp, pot_digits) = high_val;
+ pot_digits++;
+ if (high_val)
+ digits = pot_digits;
+#else
+ Uint val = array[i];
+ BIG_DIGIT(headerp, pot_digits) = val;
+ pot_digits++;
+ if (val)
+ digits = pot_digits;
+#endif
+ }
+
+ if (neg)
+ *headerp = make_neg_bignum_header(digits);
+ else
+ *headerp = make_pos_bignum_header(digits);
+
+ *hpp = headerp + 1 + digits;
+
+ return make_big(headerp);
+}
+
/*
** Convert a bignum to a double float
*/