Wed, 01 Feb 2023 18:06:50 +0100
#228 make buffer sizes adjustable at compile time
/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "cx/utils.h" #include <gtest/gtest.h> TEST(Utils, ForN) { unsigned j; j = 0; cx_for_n(i, 50) { EXPECT_EQ(i, j); j++; } } TEST(Utils, szmul) { size_t r; int e; e = cx_szmul(5, 7, &r); EXPECT_EQ(0, e); EXPECT_EQ(35, r); size_t s = SIZE_MAX & ~3; e = cx_szmul(s / 4, 2, &r); EXPECT_EQ(0, e); EXPECT_EQ(s / 2, r); e = cx_szmul(2, s / 4, &r); EXPECT_EQ(0, e); EXPECT_EQ(s / 2, r); e = cx_szmul(s / 4, 4, &r); EXPECT_EQ(0, e); EXPECT_EQ(s, r); e = cx_szmul(4, s / 4, &r); EXPECT_EQ(0, e); EXPECT_EQ(s, r); e = cx_szmul(s / 4, 5, &r); EXPECT_NE(0, e); e = cx_szmul(5, s / 4, &r); EXPECT_NE(0, e); e = cx_szmul(SIZE_MAX - 4, 0, &r); EXPECT_EQ(0, e); EXPECT_EQ(0, r); e = cx_szmul(0, SIZE_MAX - 1, &r); EXPECT_EQ(0, e); EXPECT_EQ(0, r); e = cx_szmul(SIZE_MAX, 0, &r); EXPECT_EQ(0, e); EXPECT_EQ(0, r); e = cx_szmul(0, SIZE_MAX, &r); EXPECT_EQ(0, e); EXPECT_EQ(0, r); e = cx_szmul(0, 0, &r); EXPECT_EQ(0, e); EXPECT_EQ(0, r); } #ifdef CX_SZMUL_BUILTIN // also test the custom implementation struct Utils_szmul_impl : ::testing::Test { #undef CX_SZMUL_BUILTIN #include "../src/utils.c" #define CX_SZMUL_BUILTIN }; TEST_F(Utils_szmul_impl, Test) { size_t r; int e; e = cx_szmul_impl(5, 7, &r); EXPECT_EQ(0, e); EXPECT_EQ(35, r); size_t s = SIZE_MAX & ~3; e = cx_szmul_impl(s / 4, 2, &r); EXPECT_EQ(0, e); EXPECT_EQ(s / 2, r); e = cx_szmul_impl(2, s / 4, &r); EXPECT_EQ(0, e); EXPECT_EQ(s / 2, r); e = cx_szmul_impl(s / 4, 4, &r); EXPECT_EQ(0, e); EXPECT_EQ(s, r); e = cx_szmul_impl(4, s / 4, &r); EXPECT_EQ(0, e); EXPECT_EQ(s, r); e = cx_szmul_impl(s / 4, 5, &r); EXPECT_NE(0, e); e = cx_szmul_impl(5, s / 4, &r); EXPECT_NE(0, e); e = cx_szmul_impl(SIZE_MAX - 4, 0, &r); EXPECT_EQ(0, e); EXPECT_EQ(0, r); e = cx_szmul_impl(0, SIZE_MAX - 1, &r); EXPECT_EQ(0, e); EXPECT_EQ(0, r); e = cx_szmul_impl(SIZE_MAX, 0, &r); EXPECT_EQ(0, e); EXPECT_EQ(0, r); e = cx_szmul_impl(0, SIZE_MAX, &r); EXPECT_EQ(0, e); EXPECT_EQ(0, r); e = cx_szmul_impl(0, 0, &r); EXPECT_EQ(0, e); EXPECT_EQ(0, r); } #endif // CX_SZMUL_BUILTIN