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cc65/test/ref/stdarg.c
2019-02-12 22:50:49 +01:00

95 lines
2.9 KiB
C

/*
!!DESCRIPTION!! variable argument lists
!!ORIGIN!! LCC 4.1 Testsuite
!!LICENCE!! own, freely distributeable for non-profit. read CPYRIGHT.LCC
*/
#include "common.h"
#include <stdarg.h>
#ifndef NO_FUNCS_TAKE_STRUCTS
struct node
{
int a[4];
} x =
{
#ifdef NO_SLOPPY_STRUCT_INIT
{
#endif
1,2,3,4
#ifdef NO_SLOPPY_STRUCT_INIT
}
#endif
};
#endif
print(char *fmt, ...);
main()
{
print("test 1\n");
print("test %s\n", "2");
print("test %d%c", 3, '\n');
print("%s%s %w%c", "te", "st", 4, '\n');
#ifdef NO_FLOATS
print("%s%s %f%c", "te", "st", (signed long) 5, '\n');
#else
print("%s%s %f%c", "te", "st", 5.0, '\n');
#endif
#ifndef NO_FUNCS_TAKE_STRUCTS
print("%b %b %b %b %b %b\n", x, x, x, x, x, x);
#endif
return 0;
}
print(char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
for (; *fmt; fmt++)
{
if (*fmt == '%')
switch (*++fmt) {
case 'b': {
#ifdef NO_FUNCS_TAKE_STRUCTS
printf("(1 2 3 4)");
#else
struct node x =
va_arg(
ap,
struct node
);
printf("(%d %d %d %d)", x.a[0], x.a[1], x.a[2], x.a[3]);
#endif
break;
}
case 'c':
/* printf("%c", va_arg(ap, char)); */
printf("%c", va_arg(ap, int));
break;
case 'd':
printf("%d", va_arg(ap, int));
break;
case 'w':
/* printf("%x", va_arg(ap, short)); */
printf("%x", va_arg(ap, int));
break;
case 's':
printf("%s", va_arg(ap, char *));
break;
case 'f':
#ifdef NO_FLOATS
printf("%ld.000000", va_arg(ap, signed long));
#else
printf("%f", va_arg(ap, double));
#endif
break;
default:
printf("%c", *fmt);
break;
}
else
printf("%c", *fmt);
}
va_end(ap);
}