Length of the function parameters


#include <stdio.h>
#include <stdarg.h>

void print_message(char *format, ...);

int main(void)
{
  print_message("Cannot open file %s.", "test");

  return 0;
}

void print_message(char *format, ...)
{
  va_list ptr; /* get an arg ptr */

  /* initialize ptr to point to the first argument after the
     format string
  */
  va_start(ptr, format);

  /* print out message */
  vprintf(format, ptr);

  va_end(ptr);
}

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Length of the function parameters : Function Parameters « Function « C / ANSI-C

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