Since there was need for a macro 'nmalloca', there will also be need for
'xnmalloca'.
This also fixes a bug: On platforms without working alloca(), xmalloc()
could be used without being declared.
2007-12-30 Bruno Haible <[EMAIL PROTECTED]>
* lib/xmalloca.h: Include xalloc.h.
(xnmalloca): New macro.
*** lib/xmalloca.h.orig 2007-12-30 16:44:24.000000000 +0100
--- lib/xmalloca.h 2007-12-30 16:30:56.000000000 +0100
***************
*** 19,24 ****
--- 19,25 ----
#define _XMALLOCA_H
#include "malloca.h"
+ #include "xalloc.h"
#ifdef __cplusplus
***************
*** 40,48 ****
xmalloc (N)
#endif
! /* Maybe we should also define a variant
! xnmalloca (size_t n, size_t s) - behaves like xmalloca (n * s)
! If this would be useful in your application. please speak up. */
#ifdef __cplusplus
--- 41,59 ----
xmalloc (N)
#endif
! /* xnmalloca(N,S) is an overflow-safe variant of xmalloca (N * S).
! It allocates an array of N objects, each with S bytes of memory,
! on the stack. S must be positive and N must be nonnegative.
! The array must be freed using freea() before the function returns.
! Upon failure, it exits with an error message. */
! #if HAVE_ALLOCA
! /* Rely on xmalloca (SIZE_MAX) calling xalloc_die (). */
! # define xnmalloca(n, s) \
! xmalloca (xalloc_oversized ((n), (s)) ? (size_t) (-1) : (n) * (s))
! #else
! # define xnmalloca(n, s) \
! xnmalloc ((n), (s))
! #endif
#ifdef __cplusplus
