diff options
Diffstat (limited to 'libj2_j2u_divmod_j2u_to_j2u.c')
| -rw-r--r-- | libj2_j2u_divmod_j2u_to_j2u.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/libj2_j2u_divmod_j2u_to_j2u.c b/libj2_j2u_divmod_j2u_to_j2u.c index 3c5e756..754a738 100644 --- a/libj2_j2u_divmod_j2u_to_j2u.c +++ b/libj2_j2u_divmod_j2u_to_j2u.c @@ -43,6 +43,7 @@ check_manual(const struct libj2_j2u *a, const struct libj2_j2u *b, const struct libj2_j2u *expected_q, const struct libj2_j2u *expected_r) { struct libj2_j2u a_saved = *a, b_saved = *b, q, r, eq, er; + int underflow; EXPECT(!libj2_j2u_is_zero(b)); @@ -63,6 +64,7 @@ check_manual(const struct libj2_j2u *a, const struct libj2_j2u *b, er = r; expected_r = &er; } + underflow = !libj2_j2u_is_zero(expected_r); validate_result(a, b, expected_q, expected_r); @@ -122,6 +124,22 @@ check_manual(const struct libj2_j2u *a, const struct libj2_j2u *b, EXPECT(libj2_j2u_eq_j2u(a, &a_saved)); EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + q = (struct libj2_j2u){333, 444}; + EXPECT(libj2_j2u_div_j2u_to_j2u_underflow(a, b, &q) == underflow); + EXPECT(libj2_j2u_eq_j2u(a, &a_saved)); + EXPECT(libj2_j2u_eq_j2u(b, &b_saved)); + EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + + q = *a; + EXPECT(libj2_j2u_div_j2u_to_j2u_underflow(&q, b, &q) == underflow); + EXPECT(libj2_j2u_eq_j2u(b, &b_saved)); + EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + + q = *b; + EXPECT(libj2_j2u_div_j2u_to_j2u_underflow(a, &q, &q) == underflow); + EXPECT(libj2_j2u_eq_j2u(a, &a_saved)); + EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + r = (struct libj2_j2u){111, 222}; libj2_j2u_mod_j2u_to_j2u(a, b, &r); EXPECT(libj2_j2u_eq_j2u(a, &a_saved)); @@ -156,6 +174,11 @@ check_manual(const struct libj2_j2u *a, const struct libj2_j2u *b, EXPECT(libj2_j2u_eq_j2u(b, &b_saved)); EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + q = *a; + EXPECT(libj2_j2u_div_j2u_underflow(&q, b) == underflow); + EXPECT(libj2_j2u_eq_j2u(b, &b_saved)); + EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + r = *a; libj2_j2u_mod_j2u(&r, b); EXPECT(libj2_j2u_eq_j2u(b, &b_saved)); @@ -179,6 +202,11 @@ check_manual(const struct libj2_j2u *a, const struct libj2_j2u *b, EXPECT(libj2_j2u_eq_j2u(a, &a_saved)); EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + q = *b; + EXPECT(libj2_j2u_rdiv_j2u_underflow(&q, a) == underflow); + EXPECT(libj2_j2u_eq_j2u(a, &a_saved)); + EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + r = *b; libj2_j2u_rmod_j2u(&r, a); EXPECT(libj2_j2u_eq_j2u(a, &a_saved)); @@ -222,6 +250,15 @@ check_manual(const struct libj2_j2u *a, const struct libj2_j2u *b, libj2_j2u_div_ju_to_j2u(&q, b->low, &q); EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + q = (struct libj2_j2u){333, 444}; + EXPECT(libj2_j2u_div_ju_to_j2u_underflow(a, b->low, &q) == underflow); + EXPECT(libj2_j2u_eq_j2u(a, &a_saved)); + EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + + q = *a; + EXPECT(libj2_j2u_div_ju_to_j2u_underflow(&q, b->low, &q) == underflow); + EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + r = (struct libj2_j2u){111, 222}; libj2_j2u_mod_ju_to_j2u(a, b->low, &r); EXPECT(libj2_j2u_eq_j2u(a, &a_saved)); @@ -241,6 +278,10 @@ check_manual(const struct libj2_j2u *a, const struct libj2_j2u *b, libj2_j2u_div_ju(&q, b->low); EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + q = *a; + EXPECT(libj2_j2u_div_ju_underflow(&q, b->low) == underflow); + EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + r = *a; libj2_j2u_mod_ju(&r, b->low); EXPECT(libj2_j2u_eq_j2u(&r, expected_r)); @@ -275,6 +316,10 @@ check_manual(const struct libj2_j2u *a, const struct libj2_j2u *b, libj2_j2u_div_j2u_to_j2u(&q, &q, &q); EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + q = *a; + EXPECT(libj2_j2u_div_j2u_to_j2u_underflow(&q, &q, &q) == underflow); + EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + r = *a; libj2_j2u_mod_j2u_to_j2u(&r, &r, &r); EXPECT(libj2_j2u_eq_j2u(&r, expected_r)); @@ -289,6 +334,10 @@ check_manual(const struct libj2_j2u *a, const struct libj2_j2u *b, libj2_j2u_div_j2u(&q, &q); EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + q = *a; + EXPECT(libj2_j2u_div_j2u_underflow(&q, &q) == underflow); + EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + r = *a; libj2_j2u_mod_j2u(&r, &r); EXPECT(libj2_j2u_eq_j2u(&r, expected_r)); @@ -303,6 +352,10 @@ check_manual(const struct libj2_j2u *a, const struct libj2_j2u *b, libj2_j2u_rdiv_j2u(&q, &q); EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + q = *a; + EXPECT(libj2_j2u_rdiv_j2u_underflow(&q, &q) == underflow); + EXPECT(libj2_j2u_eq_j2u(&q, expected_q)); + r = *a; libj2_j2u_rmod_j2u(&r, &r); EXPECT(libj2_j2u_eq_j2u(&r, expected_r)); |