#include <iostream>
#include <iomanip>
#include <string.h>
using namespace std;
void toBinary(int nr, char* c)
{int i;
char a[100]="";
for(i=0;nr!=0;i++)
{a[i]='0'+ (nr%2);
nr/=2;
}
strrev(a);
strcpy(c,a);
}
tuple<bool,bool> sumLogic(bool n1, bool n2, bool d)
{if(int(n1+n2+d)%2==1 && (n1 || n2 || d))
if(int(n1+n2+d)>1)
return make_tuple(true,true);
else
return make_tuple(true,false);
else
if(int(n1+n2+d)>1)
return make_tuple(false,true);
else
return make_tuple(false,false);
}
void sumBinary(char n[100], char m[100], char* f, int l)
{int i,j,x,y=0;
strrev(n);
cout<<"DEBUG (sumBinary): Done reverting "<<n<<endl;
strrev(m);
cout<<"DEBUG (sumBinary): Done reverting "<<m<<endl;
cout<<"DEBUG (sumBinary): Lengths: n="<<strlen(n)<<" m="<<m<<endl;
//cout<<l-strlen(n)<<" "<<l-strlen(m);
j=strlen(n);
for(i=0;i<l-j;i++)
strcat(n,"0");
j=strlen(m);
for(i=0;i<l-j;i++)
strcat(m,"0");
cout<<"DEBUG (sumBinary): Done adding '0' bits. n="<<n<<" m="<<m<<endl;
j=strlen(n);
for(i=0;i<j;i++)
{cout<<"DEBUG (sumBinary): for "<<i<<" until "<<strlen(n)<<endl;
tie(x,y)=sumLogic((n[i]-'0'),(m[i]-'0'),y);
cout<<"DEBUG (sumBinary): Calculated logic"<<endl;
f[i]='0'+x;
f[i+1]='0'+y;
cout<<"DEBUG (sumBinary): Added values to f: "<<x<<" "<<y<<endl;
}
cout<<"DEBUG (sumBinary): Done adding up."<<endl;
if(f[strlen(f)-1]=='0')
f[strlen(f)-1]='\0';
strrev(f);
}
void convertComplement(char inp[100], bool neg, int comp, char* out, int l)
{int i;
if(neg)
{for(i=0;i<strlen(inp);i++)
if(inp[i]=='1')
inp[i]='0';
else
inp[i]='1';
if(comp==1)
strcpy(out,inp);
else if(comp==2)
cout<<"DEBUG (convertComplement): "<<inp<<" "<<neg<<" "<<comp<<endl;
sumBinary(inp,"1",out, l);
}
else
strcpy(out,inp);
cout<<"DEBUG (convertComplement): "<<out<<endl;
}
int main2()
{int x,y;
tie(x,y)=sumLogic(0,0,0);
cout<<x<<" "<<y<<endl;
tie(x,y)=sumLogic(1,0,0);
cout<<x<<" "<<y<<endl;
tie(x,y)=sumLogic(0,1,0);
cout<<x<<" "<<y<<endl;
tie(x,y)=sumLogic(0,0,1);
cout<<x<<" "<<y<<endl;
tie(x,y)=sumLogic(1,1,0);
cout<<x<<" "<<y<<endl;
tie(x,y)=sumLogic(1,0,1);
cout<<x<<" "<<y<<endl;
tie(x,y)=sumLogic(0,1,1);
cout<<x<<" "<<y<<endl;
tie(x,y)=sumLogic(1,1,1);
cout<<x<<" "<<y<<endl;
}
int main()
{int i,x,y,biti;
bool xNeg=false,yNeg=false;
char n[100],m[100],a[100],b[100],f[100];
cout<<"x=";cin>>x;
cout<<"y=";cin>>y;
cout<<"Biti: ";cin>>biti;
if(x<0)
{xNeg=true;
x*=-1;
// cout<<"DEBUG: x is negative"<<endl;
}
if(y<0)
{yNeg=true;
y*=-1;
// cout<<"DEBUG: y is negative"<<endl;
}
cout<<"DEBUG (main): Done checking negative."<<endl;
toBinary(x,n);
toBinary(y,m);
cout<<"DEBUG (main): Done converting to binary. n="<<n<<"; m="<<m<<endl;
// cout<<"DEBUG: "<<n<<endl;
// cout<<"DEBUG: "<<m<<endl;
// sumBinary(n,m,f);
/*if(strlen(f)>biti)
{cout<<"EROARE: Limita de biti depasita!";
return 0;
}
else if(strlen(f)<biti)
{strrev(f);
for(i=0;i<=biti-strlen(f);i++)
strcat(f,"0");
strrev(f);
}
*/
sumBinary(n,m,n,biti);
cout<<"DEBUG (main): Done summing."<<endl;
cout<<n;
return 0;
/*
if((xNeg && !yNeg && x>y) || (!xNeg && yNeg && x<y) || (xNeg && yNeg))
{cout<<"MS: 1 "<<f<<endl;
convertComplement(n, true, 1, a);
convertComplement(m, true, 1, b);
sumBinary(a,b,f);
cout<<"C1: 1 "<<f<<endl;
convertComplement(n, true, 2, a);
convertComplement(m, true, 2, b);
sumBinary(a,b,f);
cout<<"C2: 1 "<<f<<endl;
}
else
{cout<<"MS: 0 "<<f<<endl;
convertComplement(n, false, 1, a);
convertComplement(m, false, 1, b);
sumBinary(a,b,f);
cout<<"C1: 0 "<<f<<endl;
convertComplement(n, false, 2, a);
convertComplement(m, false, 2, b);
sumBinary(a,b,f);
cout<<"C2: 0 "<<f<<endl;
}
*/
}
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C++ is a widely used middle-level programming language.
When ever you want to perform a set of operations based on a condition If-Else is used.
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}
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You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.
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do {
// code
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return_type function_name(parameters);
function_name (parameters)
return_type function_name(parameters) {
// code
}