do while output error

[sgoelmrt]

i am facing problem in output after 10 iteration when i am using this command

#include<stdio.h>
main()
{
float x=1.0;
do
{
x=x+0.05;
printf("\n x=%f",x);
}
return 0;
}

[daark.child]

The while bit seems to be missing. I think your code should be something like

#include <stdio.h>
int main(void)
{
    float x = 1.0;

    do{
           x+=0.05;
           printf("\nx = &#37;f", x);
        }
        while (Some Condition)

    return 0;
}

[gopalpathak]

I am facing problem in the out put of the following Programs (after 10 iteration output is wrong)

#include<stdio.h>
main()
{
float x = 1.0;
do{
x = x+0.05;
printf("\n x = %f", x);
}while(x<2.0);
return 0;
}

[vijay_kernel]

There is no conditional expression like,

Wrong syntax:

do
{
statment 1;
statment 2;
.......
}

So you need to follow the below one ,

Correct syntax:

do
{
statment 1;
statment 2;
.......
}while(condition);

OR

while(condition)
{
statment 1;
statment 2;
.......
}

Or if you are new to the C programming then you need to refer some good basic C tutorial.

[gopalpathak]

I am facing problem in the output of the following Programs (after 10 iteration output is wrong)

#include<stdio.h>
int main()
{
float x = 1.0;
do{
x = x+0.05;
printf("\n x = %f", x);
}while(x<2.0);
return 0;
}

The Output of the above program is as follows which is wrong after 10 iteration
x=1.050000
x=1.100000
x=1.150000
x=1.200000
x=1.250000
x=1.300000
x=1.350000
x=1.400000
x=1.450000
x=1.500000
x=1.549999
x=1.599999
x=1.649999
x=1.699999
x=1.749999
x=1.799999
......
.......
x=2.049999


I have used gcc compiler

# gcc filename.c

Please try to tell the appropriate reason because our research program is held due to this type of error.Also try tell whether programming in under Linux will
be suitable or not in the context of accuracy in the results.

[drl]

Hi.

Please try to tell the appropriate reason because our research program is held due to this type of error.Also try tell whether programming in under Linux will
be suitable or not in the context of accuracy in the results.

Your machine probably has only 6 digits of precision in a float.

You can change the float to double. For information on your combination compiler and hardware arithmetic properties of your computer, see: Enquire.c You can download the source code for enquire and run it on your machine -- that's where I got the 6-digit-float information about my computer. I changed the float to double in your code and got more digits of precision.

Some machines may see a significant speed decrease with double precision arithmetic.

Best wishes ... cheers, drl