Passing an ellipsis to another variadic function [duplicate]

by

You can’t, you can only pass the arguments as a va_list. See the comp.lang.c FAQ.

In general, if you’re writing variadic functions (that is, functions which take a variable number of arguments) in C, you should write two versions of each function: one which takes an ellipsis (...), and one which takes a va_list. The version taking an ellipsis should call va_start, call the version taking a va_list, call va_end, and return. There’s no need for code duplication between the two versions of the function, since one calls the other.

More Related Contents:

  1. Passing variable number of arguments around
  2. An example of use of varargs in C
  3. call printf using va_list
  4. What is the purpose of the h and hh modifiers for printf?
  5. Does printf(“%x”,1) invoke undefined behavior?
  6. What is the format of the x86_64 va_list structure?
  7. How are variable arguments implemented in gcc?
  8. How to count the number of arguments passed to a function that accepts a variable number of arguments?
  9. Is GCC mishandling a pointer to a va_list passed to a function?
  10. Function with unknown number of parameters in C
  11. Unspecified number of parameters in C functions – void foo()
  12. Variadic function (va_arg) doesn’t work with float?
  13. error: incompatible types for a function that returns float in C
  14. Why scanf() reads two values when we put spaces after format specifier even we are passing one reference
  15. Is char signed or unsigned by default?
  16. C undefined behavior. Strict aliasing rule, or incorrect alignment? [duplicate]
  17. How to send a simple string between two programs using pipes?
  18. What will be the value of uninitialized variable? [duplicate]
  19. Chaining multiple greater than/less than operators
  20. Where you can and cannot declare new variables in C?
  21. Using M_PI with C89 standard
  22. Get warning when a variable is shadowed
  23. Declare main prototype
  24. What does strcmp() exactly return in C?
  25. C Strings Comparison with Equal Sign
  26. How are extremely large floating-point numbers represented in memory?
  27. Sharing memory between processes through the use of mmap()
  28. Reading a file character by character in C
  29. How can I implement ‘tee’ programmatically in C?
  30. Cast T[][] to T*

Leave a Comment