[SOLVED]Logical error (Char/Int)

Question

Description on code
https://code.sololearn.com/cEU7FasOPWvK/?ref=app

Answer 1

Why you took char instead of int or double.

Fahrenheit value is interger value or Character.

Go and review again about char, int, double, float.

Answer 2

`char` type is dedicated for (duh) characters, we don't normally treat them as numbers, although internally they belong to integral types family. Try to use `int` or `short` instead, it may work : )

(Edit)
Follow CarrieForle advice if you're concerned about memory usage. You are currently using %d specifier while reading input for a char variable. Use of inappropriate specifier for reading input may cause undesirable result.

Answer 3

Rashad Malikov So you can take any Integer or double value as a Char because it takes less memory where did you read about this. I never heard anywhere.

If I take as 1000. Do you know what is size of 1000 and a character value like a.

I think you need to learn again.

Answer 4

~ swim ~ nice) all thanks for reply

Answer 5

If you do want to use "1 byte" integer. There is inttypes.h which includes 1 byte integer int8_t.

Here is how you printf and scanf those int types: https://en.cppreference.com/w/c/types/integer

Answer 6

Your code is Ok the error is in (system("pause")) this command is not declared in the stdin.h header you have to include iostream and run it in a live console compiler to work properly

Answer 7

The else block will work if enter a value more than 100 or a value less than -100
Try this correction of your code
//Fahrenheit to Celsius

#include <stdio.h>

int main() {
int f=0,c=0; //error here

printf ("Enter f:");
scanf ("%d",&f);

if((f>=-100&&f<=0)||(f<=100&&f>=0))
{
c = (f - 32) / 1.8;
printf("f=%d\nc=%d", f, c);

}
else
{
printf ("Error");

}
return 0;
}

Answer 8

🅰🅹 - ɪ'ᴍ ᴄʀɪᴍɪɴᴀʟʟʏ ɢᴏᴏᴅ! because char uses less memory

Answer 9

converting char to integer works many times. but it stuck on this code and i can not find why

Answer 10

🅰🅹 - ɪ'ᴍ ᴄʀɪᴍɪɴᴀʟʟʏ ɢᴏᴏᴅ! conversion specifier

Answer 11

CarrieForle thanks for info

Answer 12

I think i found the answer. char uses -128 to 127 and if user input over size ,program changes it to between these numbers. and program never goes to else block 🅰🅹 - ɪ'ᴍ ᴄʀɪᴍɪɴᴀʟʟʏ ɢᴏᴏᴅ! CarrieForle is it true?

Answer 13

$p@rK i just wanted to know why else block doesnt work. and found it