Synopsis

(Required) Functions shall not be defined with a variable number of arguments.

Enabled by default

Yes

Severity/Certainty

Low/High

Full description

Functions that are defined using ellipsis (...) notation were found. This check is identical to MISRAC++2008-8-4-1.

Coding standards

Code examples

The following code example fails the check and will give a warning:

#include <stdarg.h>
int putchar(int c);

void
minprintf(const char *fmt, ...)
{
    va_list    ap;
    const char *p, *s;
    
    va_start(ap, fmt);
    for (p = fmt; *p != '\0'; p++) {
        if (*p != '%') {
            putchar(*p);
            continue;
        }
        switch (*++p) {
        case 's':
            for (s = va_arg(ap, const char *); *s != '\0'; s++)
                 putchar(*s);
            break;
        }
    }
    va_end(ap);
}

The following code example passes the check and will not give a warning about this issue:

int puts(const char *);

void
func(void)
{
    puts("Hello, world!");
}