typecov.c

自己做的常用库和实现的数据结构。public domain.

/* Demo of automatic conversion between integer type and floating type.
*/
main()
{
    short     s=10;
    int       i=25;
    long      l=100000L;
    float     f=0.5;
    double    d=1.5;

    /* float value */
    printf("f+s*i-l = %d\n", f+s*i-l);
    printf("f+s*i-l = %f\n", f+s*i-l);
    printf("f+s*i-l = %e\n", f+s*i-l);
    printf("f+s*i-l = %g\n\n", f+s*i-l);

    /* double value */
    printf("i/f+s*d = %d\n", i/f+s*d);
    printf("i/f+s*d = %f\n", i/f+s*d);
    printf("i/f+s*d = %e\n", i/f+s*d);
    printf("i/f+s*d = %g\n\n", i/f+s*d);

    /* float value */
    printf("(double)i/s*f = %d\n", (double)i/s*f);
    printf("(double)i/s*f = %f\n", i/s*f);
    printf("(double)i/s*f = %e\n", (double)i/s*f);
    printf("(double)i/s*f = %g\n\n", (double)i/s*f);

    /* double value */
    printf("l/i+(int)d/f = %d\n", l/i+(int)d/f);
    printf("l/i+(int)d/f = %d\n", l/i+(int)(d/f));
    printf("l/i+(int)d/f = %f\n", l/i+(int)d/f);
    printf("l/i+(int)d/f = %e\n", l/i+(int)d/f);
    printf("l/i+(int)d/f = %g\n\n", l/i+(int)d/f);
} /* MAIN */