test.c

#include <stdio.h>

/*
ARM output:
delay=45
delay=45
delay=97346
delay=-45

x86 output:
delay=45
delay=45
delay=97346
delay=-45

x86-64 output:
delay=45                                                           
delay=45
delay=-45
delay=-45
*/

#include <stdio.h>

long getdelay(long latencynsec, unsigned int rate) {
    return latencynsec / rate;
}

long getdelay2(long latencynsec, unsigned int rate) {
    return latencynsec / (long)rate;
}

int main() {
    long delayp;
    unsigned int rate = 44100;

    delayp = getdelay(2000000, rate);
    printf("delay=%ld\n", delayp);

    delayp = getdelay2(2000000, rate);
    printf("delay=%ld\n", delayp);

    delayp = getdelay(-2000000, rate);
    printf("delay=%ld\n", delayp);

    delayp = getdelay2(-2000000, rate);
    printf("delay=%ld\n", delayp);

    return 0;
}