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Added float conversion functions to ByteVector.

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Added CMake checks about IEEE754 compliance.
This commit is contained in:
Tsuda Kageyu
2014-07-17 01:28:02 +09:00
parent b509106031
commit e29f1d39e7
10 changed files with 397 additions and 60 deletions
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42
tests/test_bytevector.cpp
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@ -22,6 +22,7 @@
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <cstring>
#include <tbytevector.h>
#include <tbytevectorlist.h>
#include <cppunit/extensions/HelperMacros.h>
@ -38,7 +39,7 @@ class TestByteVector : public CppUnit::TestFixture
CPPUNIT_TEST(testRfind1);
CPPUNIT_TEST(testRfind2);
CPPUNIT_TEST(testToHex);
CPPUNIT_TEST(testToUShort);
CPPUNIT_TEST(testNumericCoversion);
CPPUNIT_TEST(testReplace);
CPPUNIT_TEST_SUITE_END();
@ -194,13 +195,50 @@ public:
CPPUNIT_ASSERT_EQUAL(ByteVector("f0e1d2c3b4a5968778695a4b3c2d1e0f"), v.toHex());
}
void testToUShort()
void testNumericCoversion()
{
CPPUNIT_ASSERT_EQUAL((unsigned short)0xFFFF, ByteVector("\xff\xff", 2).toUShort());
CPPUNIT_ASSERT_EQUAL((unsigned short)0x0001, ByteVector("\x00\x01", 2).toUShort());
CPPUNIT_ASSERT_EQUAL((unsigned short)0x0100, ByteVector("\x00\x01", 2).toUShort(false));
CPPUNIT_ASSERT_EQUAL((unsigned short)0xFF01, ByteVector("\xFF\x01", 2).toUShort());
CPPUNIT_ASSERT_EQUAL((unsigned short)0x01FF, ByteVector("\xFF\x01", 2).toUShort(false));
const uchar PI32LE[] = { 0x00, 0xdb, 0x0f, 0x49, 0x40 };
const uchar PI32BE[] = { 0x00, 0x40, 0x49, 0x0f, 0xdb };
const uchar PI64LE[] = { 0x00, 0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40 };
const uchar PI64BE[] = { 0x00, 0x40, 0x09, 0x21, 0xfb, 0x54, 0x44, 0x2d, 0x18 };
const uchar PI80LE[] = { 0x00, 0x00, 0xc0, 0x68, 0x21, 0xa2, 0xda, 0x0f, 0xc9, 0x00, 0x40 };
const uchar PI80BE[] = { 0x00, 0x40, 0x00, 0xc9, 0x0f, 0xda, 0xa2, 0x21, 0x68, 0xc0, 0x00 };
ByteVector pi32le(reinterpret_cast<const char*>(PI32LE), 5);
CPPUNIT_ASSERT_EQUAL(31415, static_cast<int>(pi32le.toFloat32LE(1) * 10000));
ByteVector pi32be(reinterpret_cast<const char*>(PI32BE), 5);
CPPUNIT_ASSERT_EQUAL(31415, static_cast<int>(pi32be.toFloat32BE(1) * 10000));
ByteVector pi64le(reinterpret_cast<const char*>(PI64LE), 9);
CPPUNIT_ASSERT_EQUAL(31415, static_cast<int>(pi64le.toFloat64LE(1) * 10000));
ByteVector pi64be(reinterpret_cast<const char*>(PI64BE), 9);
CPPUNIT_ASSERT_EQUAL(31415, static_cast<int>(pi64be.toFloat64BE(1) * 10000));
ByteVector pi80le(reinterpret_cast<const char*>(PI80LE), 11);
CPPUNIT_ASSERT_EQUAL(31415, static_cast<int>(pi80le.toFloat80LE(1) * 10000));
ByteVector pi80be(reinterpret_cast<const char*>(PI80BE), 11);
CPPUNIT_ASSERT_EQUAL(31415, static_cast<int>(pi80be.toFloat80BE(1) * 10000));
ByteVector pi32le2 = ByteVector::fromFloat32LE(pi32le.toFloat32LE(1));
CPPUNIT_ASSERT(memcmp(pi32le.data() + 1, pi32le2.data(), 4) == 0);
ByteVector pi32be2 = ByteVector::fromFloat32BE(pi32be.toFloat32BE(1));
CPPUNIT_ASSERT(memcmp(pi32be.data() + 1, pi32be2.data(), 4) == 0);
ByteVector pi64le2 = ByteVector::fromFloat64LE(pi64le.toFloat64LE(1));
CPPUNIT_ASSERT(memcmp(pi64le.data() + 1, pi64le2.data(), 8) == 0);
ByteVector pi64be2 = ByteVector::fromFloat64BE(pi64be.toFloat64BE(1));
CPPUNIT_ASSERT(memcmp(pi64be.data() + 1, pi64be2.data(), 8) == 0);
}
void testReplace()