How to use the Chr () function in C ++ Builder?

C ++ is different from Delphi in this respect. The type char in C ++ is both a numeric and text type. You can either store in a variable char the textual representation of the character (with single quotation marks) or use a simple number (usually equivalent to a single byte). So conversion is not necessary. Save the number you would pass to the Chr() function and you will already get the character you want. So:

char x = 65; //é o caractere A

See running on ideone .

Obviously where there is a literal number can be a variable or expression that results in this number.

If you want to use a multi-byte character, the most appropriate type is wchar_t .

The result of the decryption function follows.

String DesprotegeSenhaSQL(String senha)
{
int i, j;
String aux, texto;

j=1;
for(i=1; i<=senha.Length();i++)
{
    if (senha.SubString(i,1)!="-" && senha.SubString(i,1)!="#")
    {
      aux = aux+senha.SubString(i,1);
    }
    else
    {
       try {
         texto=texto+char(StrToInt(aux)-j);
       } catch(Exception &ex)
       {
        exit;
       }
       j=j+1;
       aux="";
    }
 }
return texto;
}