.TH LIBSIMPLE_ENREALLOC 3 libsimple
.SH NAME
libsimple_enrealloc \- reallocate memory or die

.SH SYNOPSIS
.nf
#include <libsimple.h>

void *libsimple_enrealloc(int \fIstatus\fP, void *\fIptr\fP, size_t \fIn\fP);
inline void *libsimple_erealloc(void *\fIptr\fP, size_t \fIn\fP);

#ifndef enrealloc
# define enrealloc libsimple_enrealloc
#endif
#ifndef erealloc
# define erealloc libsimple_erealloc
#endif
.fi
.PP
Link with
.IR \-lsimple .

.SH DESCRIPTION
The
.BR libsimple_enrealloc ()
and
.BR libsimple_erealloc ()
functions are wrappers for the
.BR realloc (3)
function, they reallocate memory allocated on the
heap and return the old pointer or a new pointer
with an alignment of
.I alignof(max_align_t)
to the allocated memory of
.I n
bytes. The returned pointer will contain the
same content as
.IR ptr ,
but truncated to
.I n
bytes if it is smaller or with the new bytes
uninitialised if it is larger. If a new pointer
is returned, rather than
.IR ptr ,
.I ptr
is deallocated. The function
.BR free (3)
shall be called with the returned pointer as
input when the allocated memory is no longer needed.
.PP
The
.BR libsimple_enrealloc ()
and
.BR libsimple_erealloc ()
functions will terminate the process if the memory
cannot be allocated (or if
.I n
is 0 and
.BR realloc (3)
returns
.B NULL
when it is used to allocate 0 bytes), by calling the
.BR libsimple_enprintf ()
and
.BR libsimple_eprintf ()
functions, respectively.
On failure, the process's exit value will be
.I status
if the
.BR libsimple_enrealloc ()
function is used or
.IR libsimple_default_failure_exit (3)
if the
.BR libsimple_erealloc ()
function is used.
.PP
The
.BR libsimple_enrealloc ()
and
.BR libsimple_erealloc ()
functions behaviour is unspecified if
.I n
is 0.

.SH RETURN VALUE
The
.BR libsimple_enrealloc ()
and
.BR libsimple_erealloc ()
functions return a pointer to the allocated memory
upon success completion; otherwise the process is terminated.

.SH ERRORS
The
.BR libsimple_enrealloc ()
and
.BR libsimple_erealloc ()
functions will terminate the process on failure.

.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
.TS
allbox;
lb lb lb
l l l.
Interface	Attribute	Value
T{
.BR libsimple_enrealloc (),
.br
.BR libsimple_erealloc ()
T}	Thread safety	MT-Safe
T{
.BR libsimple_enrealloc (),
.br
.BR libsimple_erealloc ()
T}	Async-signal safety	AS-Safe
T{
.BR libsimple_enrealloc (),
.br
.BR libsimple_erealloc ()
T}	Async-cancel safety	AC-Safe
.TE

.SH EXAMPLES
None.

.SH APPLICATION USAGE
None.

.SH RATIONALE
None.

.SH FUTURE DIRECTIONS
None.

.SH NOTES
None.

.SH HISTORY
libsimple 1.0

.SH BUGS
None.

.SH SEE ALSO
.BR libsimple_enmalloc (3),
.BR libsimple_mallocz (3),
.BR libsimple_vmallocn (3),
.BR libsimple_vmalloczn (3),
.BR libsimple_encalloc (3),
.BR libsimple_vcallocn (3),
.BR libsimple_reallocarray (3),
.BR libsimple_vreallocn (3),
.BR libsimple_reallocf (3),
.BR libsimple_reallocarrayf (3),
.BR libsimple_vreallocfn (3),
.BR libsimple_aligned_realloc (3),
.BR libsimple_aligned_reallocarray (3),
.BR libsimple_aligned_vreallocn (3),
.BR libsimple_aligned_reallocf (3),
.BR libsimple_aligned_reallocarrayf (3),
.BR libsimple_aligned_vreallocfn (3),
.BR libsimple_memalign (3),
.BR libsimple_memalignz (3),
.BR libsimple_vmemalignn (3),
.BR libsimple_vmemalignzn (3),
.BR libsimple_enposix_memalign (3),
.BR libsimple_posix_memalignz (3),
.BR libsimple_vposix_memalignn (3),
.BR libsimple_vposix_memalignzn (3),
.BR libsimple_enaligned_alloc (3),
.BR libsimple_aligned_allocz (3),
.BR libsimple_valigned_allocn (3),
.BR libsimple_valigned_alloczn (3),
.BR libsimple_pvalloc (3),
.BR libsimple_pvallocz (3),
.BR libsimple_vpvallocn (3),
.BR libsimple_vpvalloczn (3),
.BR libsimple_valloc (3),
.BR libsimple_vallocz (3),
.BR libsimple_vvallocn (3),
.BR libsimple_vvalloczn (3),
.BR libsimple_vmemalloc (3),
.BR libsimple_varrayalloc (3),
.BR realloc (3)