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4814c5f653
Copy what gcc's libstdc++ does for vectors to avoid overflows: 1. Define a max size macro and assert against it Note that we don't assert but actually check, because this needs to abort even if assertions are disabled. 2. Don't do fancy math to compute new capacity. Just size *= 2 instead and be careful about overflow.
121 lines
3.2 KiB
C
121 lines
3.2 KiB
C
/*
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* Copyright © 2020 Benjamin Otte
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#include <gtk/gtk.h>
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#define GDK_ARRAY_NO_UNDEF
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#include "../../gdk/gdkarrayimpl.c"
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static void
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gdk_array(test_simple) (void)
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{
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GdkArray v;
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gsize i;
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gdk_array(init) (&v);
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for (i = 0; i < 1000; i++)
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{
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g_assert_cmpint (gdk_array(get_size) (&v), ==, i);
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g_assert_cmpint (gdk_array(get_size) (&v), <=, gdk_array(get_capacity) (&v));
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gdk_array(append) (&v, i);
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#ifdef GDK_ARRAY_NULL_TERMINATED
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g_assert_cmpint (*gdk_array(index) (&v, gdk_array(get_size) (&v)), ==, 0);
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#endif
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}
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g_assert_cmpint (gdk_array(get_size) (&v), ==, i);
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g_assert_cmpint (gdk_array(get_size) (&v), <=, gdk_array(get_capacity) (&v));
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for (i = 0; i < 1000; i++)
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{
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g_assert_cmpint (gdk_array(get) (&v, i), ==, i);
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}
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gdk_array(clear) (&v);
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}
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static void
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gdk_array(test_splice) (void)
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{
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GdkArray v;
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gsize i, j, sum;
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gsize pos, add, remove;
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int additions[4] = { 0, 1, 2, 3 };
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gdk_array(init) (&v);
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sum = 0;
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for (i = 0; i < 1000; i++)
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{
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gsize old_size = gdk_array(get_size) (&v);
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pos = g_test_rand_int_range (0, old_size + 1);
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g_assert_true (pos <= old_size);
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remove = g_test_rand_int_range (0, 4);
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remove = MIN (remove, old_size - pos);
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add = g_test_rand_int_range (0, 4);
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for (j = 0; j < remove; j++)
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sum -= gdk_array(get) (&v, pos + j);
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for (j = 0; j < add; j++)
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sum += ++additions[j];
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gdk_array(splice) (&v, pos, remove, FALSE, additions, add);
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{
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gsize total = 0;
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for (j = 0; j < gdk_array(get_size) (&v); j++)
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total += gdk_array(get) (&v, j);
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g_assert_cmpint (total, ==, sum);
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}
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g_assert_cmpint (gdk_array(get_size) (&v), ==, old_size + add - remove);
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g_assert_cmpint (gdk_array(get_size) (&v), <=, gdk_array(get_capacity) (&v));
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#ifdef GDK_ARRAY_NULL_TERMINATED
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if (gdk_array(get_size) (&v))
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g_assert_cmpint (*gdk_array(index) (&v, gdk_array(get_size) (&v)), ==, 0);
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#endif
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for (j = 0; j < add; j++)
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g_assert_cmpint (gdk_array(get) (&v, pos + j), ==, additions[j]);
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}
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for (i = 0; i < gdk_array(get_size) (&v); i++)
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{
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sum -= gdk_array(get) (&v, i);
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}
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g_assert_cmpint (sum, ==, 0);
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gdk_array(clear) (&v);
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}
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#undef _T_
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#undef GdkArray
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#undef gdk_array_paste_more
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#undef gdk_array_paste
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#undef gdk_array
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#undef GDK_ARRAY_REAL_SIZE
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#undef GDK_ARRAY_MAX_SIZE
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#undef GDK_ARRAY_ELEMENT_TYPE
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#undef GDK_ARRAY_NAME
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#undef GDK_ARRAY_TYPE_NAME
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#undef GDK_ARRAY_PREALLOC
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#undef GDK_ARRAY_NULL_TERMINATED
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