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+.TH LIBJ2_J2I_MOD_J2I 3 LIBJ2
+.SH NAME
+libj2_j2i_mod_j2i \- Calculate remainder of division
+
+.SH SYNOPSIS
+.nf
+#include <libj2.h>
+
+void \fBlibj2_j2i_mod_j2i\fP(struct libj2_j2i *\fIa\fP, const struct libj2_j2i *\fIb\fP);
+void \fBlibj2_j2i_mod_j2i_to_j2i\fP(const struct libj2_j2i *\fIa\fP, const struct libj2_j2i *\fIb\fP, struct libj2_j2i *\fIr\fP);
+void \fBlibj2_j2i_mod_ji\fP(struct libj2_j2i *\fIa\fP, intmax_t \fIb\fP);
+void \fBlibj2_j2i_mod_ji_to_j2i\fP(const struct libj2_j2i *\fIa\fP, intmax_t \fIb\fP, struct libj2_j2i *\fIr\fP);
+
+void \fBlibj2_j2u_mod_j2u\fP(struct libj2_j2u *\fIa\fP, const struct libj2_j2u *\fIb\fP);
+void \fBlibj2_j2u_mod_j2u_to_j2u\fP(const struct libj2_j2u *\fIa\fP, const struct libj2_j2u *\fIb\fP, struct libj2_j2u *\fIr\fP);
+void \fBlibj2_j2u_mod_ju\fP(struct libj2_j2u *\fIa\fP, uintmax_t \fIb\fP);
+void \fBlibj2_j2u_mod_ju_to_j2u\fP(const struct libj2_j2u *\fIa\fP, uintmax_t \fIb\fP, struct libj2_j2u *\fIr\fP);
+
+void \fBlibj2_j2i_rmod_j2i\fP(struct libj2_j2i *\fIb\fP, const struct libj2_j2i *\fIa\fP);
+void \fBlibj2_j2u_rmod_j2u\fP(struct libj2_j2u *\fIb\fP, const struct libj2_j2u *\fIa\fP);
+.fi
+.PP
+Link with
+.IR -lj2 .
+
+.SH DESCRIPTION
+The above listed functions calculate the
+calculate the divide
+.I a
+by
+.I b
+and stores the remainder in
+.IR r ,
+or in the first argument for the functions
+without an
+.I r
+argument.
+.PP
+The quotient is discarded.
+.PP
+The quotient is rounded towards zero.
+The remainder is defined such that the
+product of the rounded quotient and the
+divisor is equal to the difference between
+the dividend and the remainder.
+.PP
+The arguments are assumed to be
+.RI non- NULL .
+
+.SH RETURN VALUE
+None.
+
+.SH ERRORS
+The above listed functions cannot fail.
+
+.SH HISTORY
+The
+.BR libj2_j2u_mod_j2u (),
+.BR libj2_j2u_mod_j2u_to_j2u (),
+.BR libj2_j2u_mod_ju (),
+.BR libj2_j2u_mod_ju_to_j2u (),
+and
+.BR libj2_j2u_rmod_j2u ()
+functions were added in version 1.0 of
+.BR libj2 .
+.PP
+The
+.BR libj2_j2i_mod_j2i (),
+.BR libj2_j2i_mod_j2i_to_j2i (),
+.BR libj2_j2i_mod_ji (),
+.BR libj2_j2i_mod_ji_to_j2i (),
+and
+.BR libj2_j2i_rmod_j2i ()
+functions were added in version 1.1 of
+.BR libj2 .
+
+.SH NOTES
+If you want both the quotient and
+the remainder, a
+.B divmod
+function (see
+.BR libj2_j2i_divmod_j2i (3))
+can be used to calculate both at the
+same time, for the computational
+cost of calculating one.
+
+.SH SEE ALSO
+.BR libj2 (7),
+.BR libj2_j2i_divmod_j2i (3),
+.BR libj2_j2i_div_j2i (3),
+.BR libj2_j2i_add_j2i (3),
+.BR libj2_j2i_sub_j2i (3),
+.BR libj2_j2u_sub_j2u (3),
+.BR libj2_j2i_mul_j2i (3)