Old snapshot `BigIntegerLibrary-2005.01.06'; see the ChangeLog file.

[bigint/bigint.git] / BigInteger.cc

diff --git a/BigInteger.cc b/BigInteger.cc
index 34a4e17..15173b1 100644 (file)
--- a/BigInteger.cc
+++ b/BigInteger.cc
@@ -57,15 +57,15 @@ BigInteger::BigInteger(const BigUnsigned &x, Sign s) : BigUnsigned(x) {
 *    to the unsigned type of the same length.
 * 6. Expand x (or the result of step 5) to a Blk,
 *    and store it in the number array.
+*
+* See remarks in `BigUnsigned.cc' and `NumberlikeArray.hh'
+* about new handling of zero-length arrays.
 */
 
 BigInteger::BigInteger(unsigned long x) {
-       if (x == 0) {
-               cap = 0;
-               blk = new Blk[0];
-               sign = zero;
-               len = 0;
-       } else {
+       if (x == 0)
+               sign = zero; // NumberlikeArray did the rest
+       else {
                cap = 1;
                blk = new Blk[1];
                sign = positive;
@@ -87,21 +87,14 @@ BigInteger::BigInteger(long x) {
                sign = negative;
                len = 1;
                *blk = Blk(-x);
-       } else {
-               cap = 0;
-               blk = new Blk[0];
-               sign = zero;
-               len = 0;
-       }
+       } else
+       sign = zero;
 }
 
 BigInteger::BigInteger(unsigned int x) {
-       if (x == 0) {
-               cap = 0;
-               blk = new Blk[0];
+       if (x == 0)
                sign = zero;
-               len = 0;
-       } else {
+       else {
                cap = 1;
                blk = new Blk[1];
                sign = positive;
@@ -123,21 +116,14 @@ BigInteger::BigInteger(int x) {
                sign = negative;
                len = 1;
                *blk = Blk(-x);
-       } else {
-               cap = 0;
-               blk = new Blk[0];
-               sign = zero;
-               len = 0;
-       }
+       } else
+       sign = zero;
 }
 
 BigInteger::BigInteger(unsigned short x) {
-       if (x == 0) {
-               cap = 0;
-               blk = new Blk[0];
+       if (x == 0)
                sign = zero;
-               len = 0;
-       } else {
+       else {
                cap = 1;
                blk = new Blk[1];
                sign = positive;
@@ -159,12 +145,8 @@ BigInteger::BigInteger(short x) {
                sign = negative;
                len = 1;
                *blk = Blk(-x);
-       } else {
-               cap = 0;
-               blk = new Blk[0];
-               sign = zero;
-               len = 0;
-       }
+       } else
+       sign = zero;
 }
 
 // CONVERTERS