Calculate Discount c++

[croatoanbtw]

I have two price and discount variables.

How do I calculate the discount of this product with the variables I have.


#include <iostream>
#include <locale>
using namespace std;



int main()
{
setlocale( LC_ALL, "portuguese");



string client = "João";
int age = 27;
char sex = 'M';
string product = "Memória RAM 16 GB";
float price = 40.32F;
float disccount = 5.2F;
float final prince =


printf ("Nome do Cliente\t\t%s\nIdade\t\t\t%i\nSexo\t\t\t%c\nNome do Produto\t\t%s\nPreço\t\t\t%.2f\nDesconto\t\t%.2f\n", client.c_str(), age, sex, produt.c_str(), price, disccount);


system("pause");

}



Best Regards

[Thomas1965]

Why do you want to calculate discount if you have it already ?
Looks more you want to calculate the final price.
final_price = price - discount

[Repeater]

Assuming that disccount is the percentage discount, and that the TWO words "final prince" is meant to be the SINGLE word variable name "final_price", and assumign that you don't want to calculate the discount but actually want to calculate the final price:

float final_price = price * (1 - (disccount / 100.0));

If disccount isn't a percentage discount, then not like that.

[croatoanbtw]

Give me a error when i print

#include <iostream>
#include <locale>
using namespace std;



int main()
{
setlocale( LC_ALL, "portuguese");



string cliente = "João";
int idade = 27;
char sexo = 'M';
string produto = "Memória RAM 16 GB";
float preco = 40.32F;
float desconto = 5.2F;
float precoFinal =


printf ("Nome do Cliente\t\t%s\nIdade\t\t\t%i\nSexo\t\t\t%c\nNome do Produto\t\t%s\nPreço\t\t\t%.2f\nDesconto\t\t%.2f\nPreço Final\t\\t%.2f\n", cliente.c_str(), idade, sexo, produto.c_str(), preco, desconto, precoFinal = preco * (1 - (desconto / 100.0));

system("pause");

}

||=== Build: Debug in teste 3 (compiler: GNU GCC Compiler) ===|
/home/saulo/Documentos/teste 3/main.cpp||In function ‘int main()’:|
/home/saulo/Documentos/teste 3/main.cpp|22|error: expected ‘)’ before ‘;’ token|
||=== Build failed: 1 error(s), 0 warning(s) (0 minute(s), 2 second(s)) ===|

[Repeater]

Read the error.

expected ‘)’ before ‘;’ token

expected ‘)’ before ‘;’

cpp|22|error: expected ‘)’ before ‘;’ token|

22

Line 22:
printf ("Nome do Cliente\t\t%s\nIdade\t\t\t%i\nSexo\t\t\t%c\nNome do Produto\t\t%s\nPreço\t\t\t%.2f\nDesconto\t\t%.2f\nPreço Final\t\\t%.2f\n", cliente.c_str(), idade, sexo, produto.c_str(), preco, desconto, precoFinal = preco * (1 - (desconto / 100.0));

expected ‘)’ before ‘;’

You are missing a ) .

printf (
        "Nome do Cliente\t\t%s\nIdade\t\t\t%i\nSexo\t\t\t%c\nNome do Produto\t\t%s\nPreço\t\t\t%.2f\nDesconto\t\t%.2f\nPreço Final\t\\t%.2f\n", 
        cliente.c_str(), 
        idade, 
        sexo, 
        produto.c_str(), 
        preco, 
        desconto, 
        precoFinal = preco * (1 - (desconto / 100.0))
          ; 

Where is the ) to match the ( right after printf ?


Also, look at this line of code:
float precoFinal =

Do you see anything wrong with this line of code?

[seeplus]

float precoFinal =

as you are not initialising precoFinal here, you don't need the = but do need the terminating;

float precoFinal;

Also the printf() statement is missing a final ) before the ; The number of ( and ) in a statement must be the same.

Note you are calculating precoFinal and setting its value in the printf() statement. Whilst this is legal syntax (after the missing final ) is inserted), it probably isn't the best practice. What would probably be expected is to initialise precoFinal when it is defined and just use the variable name in the printf() like the others.

float precoFinal = preco * (1 - (desconto / 100.0));
...
printf ("Nome do Cliente\t\t%s\nIdade\t\t\t%i\nSexo\t\t\t%c\nNome do Produto\t\t%s\nPreço\t\t\t%.2f\nDesconto\t\t%.2f\nPreço Final\t\\t%.2f\n", cliente.c_str(), idade, sexo, produto.c_str(), preco, desconto, precoFinal);

[croatoanbtw]

You guys managed to solve my problem. Thank you all.