ftoi(float f)1 int ftoi(float f) {
2 return f;
3 }
4
dtoi(double d)5 int dtoi(double d) {
6 return d;
7 }
8
itof(int i)9 float itof(int i) {
10 return i;
11 }
12
itod(int i)13 double itod(int i) {
14 return i;
15 }
16
17 float f0, f1;
18 double d0, d1;
19
testParseConsts()20 void testParseConsts() {
21 printf("Constants: %g %g %g %g %g %g %g %g %g\n", 0e1, 0E1, 0.f, .01f,
22 .01e0f, 1.0e-1, 1.0e1, 1.0e+1,
23 .1f);
24 }
testVars(float arg0,float arg1,double arg2,double arg3)25 void testVars(float arg0, float arg1, double arg2, double arg3) {
26 float local0, local1;
27 double local2, local3;
28 f0 = arg0;
29 f1 = arg1;
30 d0 = arg2;
31 d1 = arg3;
32 local0 = arg0;
33 local1 = arg1;
34 local2 = arg2;
35 local3 = arg3;
36 printf("globals: %g %g %g %g\n", f0, f1, d0, d1);
37 printf("args: %g %g %g %g\n", arg0, arg1, arg2, arg3);
38 printf("locals: %g %g %g %g\n", local0, local1, local2, local3);
39
40
41 printf("cast rval: %g %g\n", * (float*) & f1, * (double*) & d1);
42
43 * (float*) & f0 = 1.1f;
44 * (double*) & d0 = 3.3;
45 printf("cast lval: %g %g %g %g\n", f0, f1, d0, d1);
46 }
47
main()48 int main() {
49 testParseConsts();
50 printf("int: %d float: %g double: %g\n", 1, 2.2f, 3.3);
51 printf(" ftoi(1.4f)=%d\n", ftoi(1.4f));
52 printf(" dtoi(2.4)=%d\n", dtoi(2.4));
53 printf(" itof(3)=%g\n", itof(3));
54 printf(" itod(4)=%g\n", itod(4));
55 testVars(1.0f, 2.0f, 3.0, 4.0);
56 return 0;
57 }
58