Give an angle to a servomotor

Question

I have my servomotor conencted to my raspberry pi and I have set wiringPi but I'm only able to make it turn. I'm searching for a way to give him a specific angle.

The code I'm using to make it turn:

    #include <stdio.h>
    #include <wiringPi.h>
    
    int main() {
        printf ("Raspberry Pi wiringPi test program\n");
        wiringPiSetupGpio();
        pinMode (18, l) ;
        pwmSetMode (PWM_OUTPUT);
        pwmSetRange (1024);
        pwmSetClock (375);
        pwmWrite(18, 10);
    
    }