sdk-bsp-psoc_e84-edgi-talk/rt-thread/examples/libc/printf.c

/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2010-11-17     Bernard      first version
 */

#include <stdio.h>
#include <stdlib.h>
#include <sys/fcntl.h>

#include <finsh.h>

char *format[] =
{
    "%",
    "%0.",
    "%.0",
    "%+0.",
    "%+.0",
    "%.5",
    "%+.5",
    "%2.5",
    "%22.5",
    "%022.5",
    "%#022.5",
    "%-#022.5",
    "%+#022.5",
    "%-22.5",
    "%+22.5",
    "%--22.5",
    "%++22.5",
    "%+-22.5",
    "%-+22.5",
    "%-#022.5",
    "%-#22.5",
    "%-2.22",
    "%+2.22",
    "%-#02.22",
    "%-#2.22",
    "%-1.5",
    "%1.5",
    "%-#01.5",
    "%-#1.5",
    "%-#.5",
    "%-#1.",
    "%-#.",
    NULL
};


static void
intchk(const char *fmt)
{
    (void) printf("%15s :, \"", fmt);
    (void) printf(fmt, 0);
    (void) printf("\", \"");
    (void) printf(fmt, 123);
    (void) printf("\", \"");
    (void) printf(fmt, -18);
    (void) printf("\"\n");
}

static void
fltchk(const char *fmt)
{
    (void) printf("%15s :, \"", fmt);
    (void) printf(fmt, 0.0);
    (void) printf("\", \"");
    (void) printf(fmt, 123.0001);
    (void) printf("\", \"");
    (void) printf(fmt, -18.0002301);
    (void) printf("\"\n");
}


int printf_test()
{
    char buf[256];
    int i;

    printf("%s\n\n", "# vim:syntax=off:");

    /* integers */
    for (i = 0; format[i]; i++)
    {
        strcpy(buf, format[i]);
        strcat(buf, "d");
        intchk(buf);
    }

    /* floats */
    for (i = 0; format[i]; i++)
    {
        strcpy(buf, format[i]);
        strcat(buf, "f");
        fltchk(buf);
    }
    /* hexa */
    for (i = 0; format[i]; i++)
    {
        strcpy(buf, format[i]);
        strcat(buf, "x");
        intchk(buf);
    }

    printf("#%.4x %4x#\n", 4, 88);
    printf("#%4x#\n", 4);
    printf("#%#22.8x#\n", 1234567);

    printf("#%+2i#\n", 18);
    printf("#%i#\n", 18);
    printf("#%llu#\n", 4294967297ULL);
    printf("#%#x#\n", 44444);
    printf("#%-8i#\n", 33);
    printf("#%i#\n", 18);
    printf("#%d#\n", 18);
    printf("#%u#\n", 18);
    printf("#%lu#\n", 18);
    printf("#%li#\n", 18);
    printf("#%-+#06d#\n", -123);
    printf("#%-+#6d#\n", -123);
    printf("#%+#06d#\n", -123);
    printf("#%06d#\n", -123);
    printf("#%+15s#\n", "ABCDEF");
    /* from ncurses make_keys */
    printf("{ %4d, %-*.*s },\t/* %s */\n", 139, 16, 16, "KEY_A1", "key_a1");
    printf("{ %4d, %-*.*s },\t/* %s */\n", 139, 16,  2, "KEY_A1", "key_a1");
    printf("{ %4d, %-*.*s },\t/* %s */\n", 139,  2, 16, "KEY_A1", "key_a1");
    printf("{ %4d, %-*.*s },\t/* %s */\n", 139, 16,  0, "KEY_A1", "key_a1");
    printf("{ %4d, %-*.*s },\t/* %s */\n", 139,  0, 16, "KEY_A1", "key_a1");
    printf("{ %4d, %-*.*s },\t/* %s */\n", 139,  0,  0, "KEY_A1", "key_a1");
    printf("{ %4d, %*.*s },\t/* %s */\n", 139, 16, 16, "KEY_A1", "key_a1");
    printf("{ %4d, %*.*s },\t/* %s */\n", 139, 16,  2, "KEY_A1", "key_a1");
    printf("{ %4d, %*.*s },\t/* %s */\n", 139,  2, 16, "KEY_A1", "key_a1");
    printf("{ %4d, %*.*s },\t/* %s */\n", 139, 16,  0, "KEY_A1", "key_a1");
    printf("{ %4d, %*.*s },\t/* %s */\n", 139,  0, 16, "KEY_A1", "key_a1");
    printf("{ %4d, %*.*s },\t/* %s */\n", 139,  0,  0, "KEY_A1", "key_a1");
    printf("%*.*f\n",  0, 16, 0.0);
    printf("%*.*f\n", 16, 16, 0.0);
    printf("%*.*f\n",  2, 2, -0.0);
    printf("%*.*f\n", 20, 0, -123.123);
    printf("%*.*f\n", 10, 0, +123.123);


    i = printf("\"%s\"\n", "A");
    printf("%i\n", i);
    /* from glibc's tst-printf.c */

    {
        char buf[20];
        char buf2[512];
        int i;

        printf("snprintf (\"%%30s\", \"foo\") == %d, \"%.*s\"\n",
               snprintf(buf, sizeof(buf), "%30s", "foo"), (int) sizeof(buf),
               buf);
        memset(buf2, 0, sizeof(buf));
        i = snprintf(buf2, 256, "%.9999u", 10);
        printf("%i %i\n", i, strlen(buf2));

        printf("snprintf (\"%%.999999u\", 10) == %d\n",
               snprintf(buf2, sizeof(buf2), "%.999999u", 10));
    }
    return 0;
}

void libc_printf()
{
    printf("stdout test!!\n");
    fprintf(stdout, "fprintf test!!\n");
    fprintf(stderr, "fprintf test!!\n");
    puts("puts test!!\n");

    putc('1', stderr);
    putc('2', stderr);
    putc('\n', stderr);

    printf_test();
}
FINSH_FUNCTION_EXPORT(libc_printf, printf test in libc);


void libc_dprintf()
{
    int fd;

    fd = open("/dev/console", O_WRONLY, 0);
    if (fd > 0)
    {
        dprintf(fd, "fd:%d printf test!!\n", fd);
        close(fd);
    }
}
FINSH_FUNCTION_EXPORT(libc_dprintf, dprintf test);


void libc_fdopen()
{
    int fd;
    FILE* fp;

    fd = open("/dev/console", O_WRONLY, 0);
    if (fd > 0)
    {
        fp = fdopen(fd, "w");
        fprintf(fp, "fdopen test, fd %d!!\n", fileno(fp));
        fclose(fp);
    }
}
FINSH_FUNCTION_EXPORT(libc_fdopen, fdopen test);