libj2_j2u_to_j2i.3


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.TH LIBJ2_J2U_TO_J2I 3 LIBJ2
.SH NAME
libj2_j2u_to_j2i \- Convert between signed and unsigned double-max precision integer

.SH SYNOPSIS
.nf
#include <libj2.h>

void \fBlibj2_j2u_to_j2i\fP(const struct libj2_j2u *\fIu\fP, struct libj2_j2i *\fIi\fP);
void \fBlibj2_j2i_to_j2u\fP(const struct libj2_j2i *\fIi\fP, struct libj2_j2u *\fIu\fP);
.fi
.PP
Link with
.IR -lj2 .

.SH DESCRIPTION
The
.BR libj2_j2u_to_j2i ()
function converts
.I u
from unsigned double-max precision
to signed double-max precision and
stored the signed integer in
.IR i .
.PP
The
.BR libj2_j2i_to_j2u ()
function converts
.I i
from signed double-max precision
to unsigned double-max precision and
stored the signed integer in
.IR u .
.PP
The arguments are assumed to be
.RI non- NULL .
.PP
.I u
and
.I i
will be represented using the same bit
sequence, by design, this means that if
.I i
is negative (for the
.BR libj2_j2u_to_j2i ()
function, this happens when
.I u
is too large to be represented by
.BR "struct libj2_j2i" ),
.I -i
and the unsigned
.I 0-u
will have the same value, that is
if some value
.I a
translates to some value
.IR b ,
the additive inverse of
.I a
translates to the additive inverse of
.IR b .

.SH RETURN VALUE
None.

.SH ERRORS
The
.BR libj2_j2u_to_j2i ()
and
.BR libj2_j2i_to_j2u ()
functions cannot fail.

.SH HISTORY
The
.BR libj2_j2u_to_j2i ()
and
.BR libj2_j2i_to_j2u ()
functions were added in version 1.1 of
.BR libj2 .

.SH SEE ALSO
.BR libj2 (7),
.BR libj2_ju_to_j2i (3)