path: root/src/common/nullpo.c

#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include "nullpo.h"
// #include "logs.h" // �z�΂��Ă݂�

static void nullpo_info_core (const char *file, int line, const char *func,
                              const char *fmt, va_list ap);

/*======================================
 * Null�`�F�b�N �y�� ���o��
 *--------------------------------------
 */
int nullpo_chk_f (const char *file, int line, const char *func,
                  const void *target, const char *fmt, ...)
{
    va_list ap;

    if (target != NULL)
        return 0;

    va_start (ap, fmt);
    nullpo_info_core (file, line, func, fmt, ap);
    va_end (ap);
    return 1;
}

int nullpo_chk (const char *file, int line, const char *func,
                const void *target)
{
    if (target != NULL)
        return 0;

    nullpo_info_core (file, line, func, NULL, NULL);
    return 1;
}

/*======================================
 * nullpo���o��(�O���ďo���������b�p)
 *--------------------------------------
 */
void nullpo_info_f (const char *file, int line, const char *func,
                    const char *fmt, ...)
{
    va_list ap;

    va_start (ap, fmt);
    nullpo_info_core (file, line, func, fmt, ap);
    va_end (ap);
}

void nullpo_info (const char *file, int line, const char *func)
{
    nullpo_info_core (file, line, func, NULL, NULL);
}

/*======================================
 * nullpo���o��(Main)
 *--------------------------------------
 */
static void nullpo_info_core (const char *file, int line, const char *func,
                              const char *fmt, va_list ap)
{
    if (file == NULL)
        file = "??";

    func = func == NULL ? "unknown" : func[0] == '\0' ? "unknown" : func;

    printf ("--- nullpo info --------------------------------------------\n");
    printf ("%s:%d: in func `%s'\n", file, line, func);
    if (fmt != NULL)
    {
        if (fmt[0] != '\0')
        {
            vprintf (fmt, ap);

            // �Ō�ɉ��s�������m�F
            if (fmt[strlen (fmt) - 1] != '\n')
                printf ("\n");
        }
    }
    printf ("--- end nullpo info ----------------------------------------\n");

    // �������nullpo���O���t�@�C���ɏ����o������
    // �܂Ƃ߂Ē�o�ł���ȂƎv���Ă�����B
}