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-rw-r--r--bigint.cpp24
1 files changed, 20 insertions, 4 deletions
diff --git a/bigint.cpp b/bigint.cpp
index 639d263..8cd06ab 100644
--- a/bigint.cpp
+++ b/bigint.cpp
@@ -16,8 +16,15 @@ Bigint Bigint::two(2);
Bigint::Bigint()
:sign(1){}
+Bigint::Bigint(Bigint &&o)
+ :digits(move(o.digits)),sign(o.sign){
+ o.normalise();
+ checkconsistent();
+}
+
Bigint::Bigint(const string &repr){
stringstream(repr)>>*this;
+ checkconsistent();
}
Bigint::Bigint(slongdigit_t v)
@@ -145,6 +152,15 @@ void Bigint::checkconsistent(){
assert(digits.size()!=0||sign==1);
}
+Bigint& Bigint::operator=(Bigint &&o){
+ sign=o.sign;
+ digits=move(o.digits);
+ o.normalise();
+ normalise();
+ checkconsistent();
+ return *this;
+}
+
Bigint& Bigint::operator=(slongdigit_t v){
digits.clear();
if(v==0){
@@ -498,21 +514,21 @@ string Bigint::serialiseMantissa() const {
int sz=digits.size();
for(int i=0;i<sz;i++){
for(int j=0;j<(int)sizeof(digit_t);j++){
- s[i*sizeof(digit_t)+j]=(digits[i]>>(8*j))&255;
+ s[i*sizeof(digit_t)+j]=(digits[i]>>(8*j))&0xff;
}
}
return s;
}
void Bigint::deserialiseMantissa(const string &s){
- assert(s.size()%4==0);
+ assert(s.size()%sizeof(digit_t)==0);
sign=1;
- int sz=s.size()/4;
+ int sz=s.size()/sizeof(digit_t);
digits.resize(sz);
for(int i=0;i<sz;i++){
digits[i]=0;
for(int j=0;j<(int)sizeof(digit_t);j++){
- digits[i]|=s[i*sizeof(digit_t)+j]<<(8*j);
+ digits[i]|=(uint8_t)s[i*sizeof(digit_t)+j]<<(8*j);
}
}
shrink();