• State Not Answered
  • Locked Locked
  • Replies 9 replies
  • Subscribers 22 subscribers
  • Views 1910 views
  • Users 0 members are here
Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

printf

m b

Hi,

I am trying to run my first C program on Keil...it works perfectly until I insert a printf statement...am i missing something?

#include <reg52.h>
#include <stdio.h>

void main(void)
{
        unsigned int i;

        unsigned int ans = 0;

        for (i =0; i< 5; i++)
        {
                ans += 2;
        }

        printf("The answer is: " + ans);
}

Parents
  • 0 in reply to m b

    "my actual point of doing this program is in using the printf...but it wasnt working"

    When I do 'printf() tests, I usually use a simulator and sprintf() so that I don't have to worry about an device's output driver blocking:

    #include <reg52.h>
#include <stdio.h>

char buf[32];

void main(void)
{
    unsigned int i;

    unsigned int ans = 0;

    for (i =0; i< 5; i++)
    {
        ans += 2;
    }

    sprintf(buf, "The answer is: %u",ans);

    ans += 2;

    for (;;);
}

Reply
  • 0 in reply to m b

    "my actual point of doing this program is in using the printf...but it wasnt working"

    When I do 'printf() tests, I usually use a simulator and sprintf() so that I don't have to worry about an device's output driver blocking:

    #include <reg52.h>
#include <stdio.h>

char buf[32];

void main(void)
{
    unsigned int i;

    unsigned int ans = 0;

    for (i =0; i< 5; i++)
    {
        ans += 2;
    }

    sprintf(buf, "The answer is: %u",ans);

    ans += 2;

    for (;;);
}

Children
No data