New to C, having problems.

[spark_ey]

Hello everybody, I'm new to this forum, hopefully it doesn't shine a bad light on me that my first post is one asking for help...

Anyway, I'm quite new to C, but can normally manage to work around any small problems I have on my own, however today my brain doesn't seem to be functioning. I can't figure out what's wrong here:

#include "aservelibs/aservelib.h"
#include <stdio.h>
#include <math.h>

/**/

int main ()
{
	float frequency;
	scanf("%f", &frequency);
	while (frequency <= 20000) 
	{
		printf("frequency");
		aserveOscillator(0, frequency, 1.0, 0);
		aserveSleep(500);
	}
	else
	{
		aserveOscillator(0, 0, 0, 0);
	}

	
	return 0;
}

I was wondering if anyone could point me in the right direction?
Thanks in advance for any help.

I'm a fool. Please disregard this post!
Looked back at it after a short break and kicked myself. Oh well.

[claudiu]

Welcome sparkey!

Well could you at least describe what is going on? What seems to be wrong?

[itCbitC]

The else follows while?

[anduril462]

There is no while-else construct in C. I'm not totally clear on what you're trying to do, but you probably want some sort of if-else block inside the while loop, or a while loop in one or both of the if-else sections:

while (frequency < 20000) {
    if (some condition) {
        ...
    }
    else {
        ...
    }
}

if (frequency < 20000) {
    while (some condition) {
        ...
    }
}
else {
    ...
}

[spark_ey]

Apologies for not explaining myself very well-if at all.

I'm trying to build a program to do as follows:

Start>Initialise frequency variable>(Start loop)Is frequency variable less that 20,000?(If no, end)>Set oscillator to frequency variable value>Display frequency value>Add 50 to the frequency variable>Pause(loop back to "Is frequency variable less that 20,000?">Stop

Hopefully that makes it slightly more clear.

As I mentioned, I'm very new to C and, honestly, am not particularly good at it.

http://img155.imageshack.us/img155/2...01108at180.png - a screenshot of the flowchart I'm working to.

[Salem]

while loops don't have else clauses

while loops should CHANGE the expression in some way, unless you intend to loop forever.