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#include <stdio.h>
#include <unistd.h>
FILE *stdin = (void *)0;
int getchar(void)
{
return fgetc(stdin);
}
int getc(FILE *stream)
{
return fgetc(stream);
}
int fgetc(FILE *stream)
{
int c;
if (fread(&c, 1, 1, stream) < 1)
return EOF;
return c;
}
char *gets(char *str)
{
char *s = str;
while (1) {
char c = fgetc(stdin);
if (c == '\n' || c == EOF || c == '\0')
break;
*(str++) = c;
}
*str = '\0';
return s;
}
char *fgets(char *restrict str, int size, FILE *stream)
{
if (size < 1)
return NULL;
char *s = str;
while (size > 1) {
char c = fgetc(stream);
if (c == '\n' || c == EOF || c == '\0')
break;
*(str++) = c;
size--;
}
*str = '\0';
return s;
}
size_t fread(void *restrict ptr, size_t size, size_t n, FILE *restrict stream)
{
int fd = (uintptr_t)stream;
char *restrict buf = ptr;
for (size_t i = 0; i < n; i++)
if (read(fd, buf + i * size, size) < 1)
return i;
return n;
}
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