I am trying to toggle an LED light with a button. It is supposed to turn the LED

Question

I am trying to toggle an LED light with a button. It is supposed to turn the LED on if it is turned off, and turn the LED off if it is turned on.

I am using a Raspberry Pi and writing my code in C.

My LED output is at GPIO pin 17, and my button output is at GPIO pin 18.

This is the code I have so far:

int main (void) {

wiringpiSetupGpio();

pinMode(17, OUTPUT);

pinMode(18, INPUT);

int prevState, reading, curState = LOW;

for(;;) {

curState = digitalRead(18);

if (curSate == HIGH && prevState == LOW) {

if (reading == 1){

digitalwrite(17, LOW);

reading = 0;

}

else {

digitalwrite(17, HIGH);

reading = 1;

}

}

prevState = curState;

}

return0;

}

Explanation / Answer

I have written the c code for the raspberry pi. working code:

#include <wiringPi.h>
int main (void)
{
wiringPiSetup ();
pinMode (17, OUTPUT);
pinMode (18, INPUT);
digitalWrite (0, LOW);

int button_state = HIGH, reading = 0;

for(;;)
{
if(button_state == HIGH && digitalRead(1) == LOW)
{
button_state = LOW;

if(reading)
{
reading = 0;
digitalWrite(0, LOW);
}
else
{
reading = 1;
digitalWrite(0, HIGH);
}
}
else if(button_state == LOW && digitalRead(1) == HIGH)
{
button_state = HIGH;
)

}
return 0;
}

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