Luna/apps/app.c

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

void bye()
{
    printf("byeee!\n");
}

int main()
{
    atexit(bye);
    printf("Welcome to %s!\n", "Luna");

    time_t now = time(NULL);
    printf("Realtime clock: %ld s\n", now);

    for (int i = 0; i < atoi("8"); i++) { console_write(".", 1); }

    console_write("\n", 1);
}
Switch to C for userspace, with a very bare-bones libc!! 2023-01-06 12:31:14 +00:00			`#include <stdio.h>`
			`#include <stdlib.h>`
kernel, libc: Add clock_gettime() 2023-01-06 23:21:08 +00:00			`#include <time.h>`
Switch to C for userspace, with a very bare-bones libc!! 2023-01-06 12:31:14 +00:00
More stdlib.h implementation + commenting + atexit() 2023-01-06 18:40:25 +00:00			`void bye()`
			`{`
Implement printf() 2023-01-07 00:49:26 +00:00			`printf("byeee!\n");`
More stdlib.h implementation + commenting + atexit() 2023-01-06 18:40:25 +00:00			`}`

Switch to C for userspace, with a very bare-bones libc!! 2023-01-06 12:31:14 +00:00			`int main()`
			`{`
More stdlib.h implementation + commenting + atexit() 2023-01-06 18:40:25 +00:00			`atexit(bye);`
Implement printf() 2023-01-07 00:49:26 +00:00			`printf("Welcome to %s!\n", "Luna");`
Implement string formatting into libc :) Of course, using <luna/Format.h> makes it so simple. No need for duplicate code! 2023-01-06 19:15:43 +00:00
libc: Implement time() using clock_gettime(). The cool POSIX kids use clock_gettime() now because it has NANOSECONDS (and different clocks!), but ANSI C prefers this function. We can still implement it based on clock_gettime(), we just have to discard the NANOSECONDS. 2023-01-06 23:27:23 +00:00			`time_t now = time(NULL);`
Implement printf() 2023-01-07 00:49:26 +00:00			`printf("Realtime clock: %ld s\n", now);`
kernel, libc: Add clock_gettime() 2023-01-06 23:21:08 +00:00
Implement printf() 2023-01-07 00:49:26 +00:00			`for (int i = 0; i < atoi("8"); i++) { console_write(".", 1); }`
Switch to C for userspace, with a very bare-bones libc!! 2023-01-06 12:31:14 +00:00
Implement printf() 2023-01-07 00:49:26 +00:00			`console_write("\n", 1);`
Switch to C for userspace, with a very bare-bones libc!! 2023-01-06 12:31:14 +00:00			`}`