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/* See LICENSE file for copyright and license details. */
#include "common.h"
#if defined(__linux__)
# include <linux/kd.h>
int
have_micro_symbol(void)
{
static int ret = -1;
if (ret < 0) {
struct unimapdesc desc;
struct unipair *pairs = NULL;
size_t i;
ret = 1;
desc.entry_ct = 0;
desc.entries = NULL;
if (ioctl(STDIN_FILENO, GIO_UNIMAP, &desc))
if (!desc.entry_ct)
goto out;
desc.entries = pairs = ecalloc(desc.entry_ct, sizeof(*pairs));
if (ioctl(STDIN_FILENO, GIO_UNIMAP, &desc))
goto out;
for (i = 0; i < desc.entry_ct; i++)
if (desc.entries[i++].unicode == 0xB5U)
goto out;
ret = 0;
out:
free(pairs);
}
return ret;
}
#else
# if defined(__GNUC__)
__attribute__((__const__))
# endif
int
have_micro_symbol(void)
{
return 1;
}
#endif
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