Kotlin/Native : Write to a text file using fprintf()

write_to_text_file.kt

package sample.helloworld

import platform.posix.*

/*
    Reference of C code:
    ---------------------

    int main()
    {
        int num;
        FILE *fptr;
        fptr = fopen("test.txt","w");

        if(fptr == NULL)
        {
            printf("Error!");
            exit(1);
        }

        printf("Enter num: ");
        scanf("%d",&num);

        fprintf(fptr,"%d",num);
        fclose(fptr);

        return 0;
    }
*/


fun main(args: Array<String>) {

    val fptr = fopen("test.txt", "w")

    if (fptr == null) {
        println("Error!")
        return
    }

    println("Enter num: ")
    val num = readLine()?.toInt() ?: 0

    println(num)

    fprintf(fptr, num.toString())

    fclose(fptr)
}