title
#What am i doing wrong ?
slim adder
steel merlinBOT
slim adder
#include <stdio.h>;
#include <stdlib.h>
#include <string>
void main() {
int rows;
int columns;
char symbol;
printf("Kolko reda?: "); scanf_s("%d", &rows);
printf("Kolko koloni?: "); scanf_s("%d", &columns);
printf("Napishete simvol po vash izbor: "); scanf_s("%d", &symbol);
for (int i = 1; i <= rows; i++) {
for (int j = 1; j <= columns; j++) {
printf(symbol);
}
}
system("pause");
}
Error C2664 'int printf(const char *const ,...)': cannot convert argument 1 from 'char' to 'const char *const ' ConsoleApplication2
supple raptor
Error C2664 'int printf(const char *const ,...)': cannot convert argument ...
The printf function needs a format string as argument 1.
Example: printf("%c\n", <your variable here>)
There are other printf format symbols too, and it would be best to check online for those.
slim adder
The `printf` function needs a format string as argument 1.
Example: `printf("%c...
so something like this ?
printf("%c\n" , symbol);
correct me if im wrong , im a complete begginer
uhm
XD
supple raptor
All format symbols start with %. Like %i for int type, %s for strings.
slim adder
my point is that i want to try making a square with 3 rows 6 columns with a symbol by the user's choise
like @
supple raptor
Hmm, I realized something, yeah
slim adder
i should've writen the text in english , mb
`#include <stdio.h>;
#include <stdlib.h>
#include <string>
void main() {
int rows;
int columns;
char symbol;
printf("How many rows: "); scanf_s("%d", &rows);
printf("How many columns?: "); scanf_s("%d", &columns);
printf("Choose a symbol by your choise: "); scanf_s("%d", &symbol);
for (int i = 1; i <= rows; i++) {
for (int j = 1; j <= columns; j++) {
printf("%c\n", symbol);
}
}
system("pause");
}`
supple raptor
so you'll have to think of how to print each row first...
then once you got a row to print, you can go to next line with printing \n
the square is rows by columns
you have the basic loops there, but you'll need a way to print a number of char letters per row 1st
rapid bloom
In C++, use std::cout instead of printf
slim adder
In C++, use `std::cout` instead of `printf`
thats how they explained it to us in uni
im rly confused on the many methods of programming in c++
sadly i have to write it in their way
primal tinsel
A rule of thumb: If you import a standard library and it ends in ".h", such as with <stdio.h> and <stdlib.h> - then those are C libraries.
Whereas <string> and <iostream> (which is what includes std::cout), those are c++
One thing to try is:
for (int i = 1; i <= rows; i++) {
for (int j = 1; j <= columns; j++) {
printf("%c", symbol);
}
}```Versus what you currently have.
That combined with what DerkT said may give you the insight you need to start printing out the square.
-------
And, just as a side note on the C vs C++ thing... If you'd like to do it with the C++ library instead, then you can simply add ```cpp
#include <iostream>
``` and then replace ```cpp
printf("%c", symbol);
``` with ```c
std::cout << symbol;
``` instead. And the other `printf(<blah>);` lines generally become `std::cout << <blah>;` if you are only printing out a single value.
But if your uni wants you to use printf then go ahead and stick with that. 🙂holy fuck
this makes alot of sence
I've been asking people who program on c++ about why we use stdio.h instead of iostream , and nobody managed to give a good explenation
makes alot of sence now . Thank you so much for the clearance
btw is it an issue if i use c syntax on c++ console app ?
primal tinsel
No problem! 🙂
primal tinsel
btw is it an issue if i use c syntax on c++ console app ?
And, generally, no - c++ compilers will be able to compile the c++ and c parts; although it is kind of confusing to other humans to do so.
However, writing c++ and then using .c is more likely to cause problems, since c++ is much larger than c in scope.
Here is a rough picture of how the two languages compare. There is a small sliver of C that could trip up a C++ compiler, but you're unlikely to stumble upon it by accident, as they are rather niche features.
steel merlinBOT
@slim adder Has your question been resolved? If so, type !solved :)
slim adder
Here is a rough picture of how the two languages compare. There is a small slive...
good
thank you so much for answering
!solved
steel merlinBOT
primal tinsel
thank you so much for answering
No problem, glad I could help! Have a nice day 🙂
rapid bloom
Here is a rough picture of how the two languages compare. There is a small slive...
oh my god this is a refreshing image to see. so many people blindly proclaim, with confidence, that C is a strict subset