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// This program is designed to test some arm64-specific things, such as the
// calling convention, but should give the same results on any architecture.
#include <stdarg.h>
#include <stdint.h>
#include <stddef.h>
#include "test.h"
struct hfa21 { double a; } hfa21 = { 21.1 };
struct hfa22 { double a, b; } hfa22 = { 22.1, 22.2 };
struct hfa23 { double a, b, c; } hfa23 = { 23.1, 23.2, 23.3 };
struct hfa24 { double a, b, c, d; } hfa24 = { 24.1, 24.2, 24.3, 24.4 };
struct hfa31 { long double a; } hfa31 = { 31.1 };
struct hfa32 { long double a, b; } hfa32 = { 32.1, 32.2 };
struct hfa33 { long double a, b, c; } hfa33 = { 33.1, 33.2, 33.3 };
struct hfa34 { long double a, b, c, d; } hfa34 = { 34.1, 34.2, 34.3, 34.4 };
int match(const char **s, const char *f)
{
const char *p = *s;
for (p = *s; *f && *f == *p; f++, p++)
;
if (!*f) {
*s = p - 1;
return 1;
}
return 0;
}
void myprintf(const char *format, ...)
{
const char *s;
va_list ap;
va_start(ap, format);
for (s = format; *s; s++) {
if (match(&s, "%hfa21")) {
struct hfa21 x = va_arg(ap, struct hfa21);
printf("%.1f,%.1f", x.a, x.a);
}
else if (match(&s, "%hfa22")) {
struct hfa22 x = va_arg(ap, struct hfa22);
printf("%.1f,%.1f", x.a, x.b);
}
else if (match(&s, "%hfa23")) {
struct hfa23 x = va_arg(ap, struct hfa23);
printf("%.1f,%.1f", x.a, x.c);
}
else if (match(&s, "%hfa24")) {
struct hfa24 x = va_arg(ap, struct hfa24);
printf("%.1f,%.1f", x.a, x.d);
}
else if (match(&s, "%hfa31")) {
struct hfa31 x = va_arg(ap, struct hfa31);
printf("%.1Lf,%.1Lf", x.a, x.a);
}
else if (match(&s, "%hfa32")) {
struct hfa32 x = va_arg(ap, struct hfa32);
printf("%.1Lf,%.1Lf", x.a, x.b);
}
else if (match(&s, "%hfa33")) {
struct hfa33 x = va_arg(ap, struct hfa33);
printf("%.1Lf,%.1Lf", x.a, x.c);
}
else if (match(&s, "%hfa34")) {
struct hfa34 x = va_arg(ap, struct hfa34);
printf("%.1Lf,%.1Lf", x.a, x.d);
}
else
putchar(*s);
}
putchar('\n');
}
int main()
{
printf("stdarg:\n");
myprintf("%hfa24 %hfa22 %hfa21 %hfa21 %hfa21 %hfa21",
hfa24, hfa22, hfa21, hfa21, hfa21, hfa21);
return 0;
}
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