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tests.cpp
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tests.cpp
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#include "intmem.h"
#include <iostream>
using namespace intmem;
#ifdef _MSC_VER
#define ALIGN(n) __declspec(align(n))
#else
#define ALIGN(n) __attribute__((aligned(n)))
#endif
template <class T>
int test_unsigned(const char* Name)
{
ALIGN(alignof(T)) uint8_t cst_4_le[sizeof(T)] = {0};
ALIGN(alignof(T)) uint8_t cst_4_be[sizeof(T)] = {0};
cst_4_le[0] = 4;
cst_4_be[sizeof(T)-1] = 4;
if (loadu_le<T>(cst_4_le) != 4) {
std::cerr << Name << ": error loading LE integer!" << std::endl;
return 1;
}
if (loadu_be<T>(cst_4_be) != 4) {
std::cerr << Name << ": error loading BE integer!" << std::endl;
return 1;
}
if (load_le<T>((T*) cst_4_le) != 4) {
std::cerr << Name << ": error loading LE integer!" << std::endl;
return 1;
}
if (load_be<T>((T*) cst_4_be) != 4) {
std::cerr << Name << ": error loading BE integer!" << std::endl;
return 1;
}
ALIGN(alignof(T)) uint8_t tmp[sizeof(T)];
storeu_le<T>(tmp, 4);
if (memcmp(tmp, cst_4_le, sizeof(T)) != 0) {
std::cerr << Name << ": error storing LE integer!" << std::endl;
return 1;
}
storeu_be<T>(tmp, 4);
if (memcmp(tmp, cst_4_be, sizeof(T)) != 0) {
std::cerr << Name << ": error storing BE integer!" << std::endl;
return 1;
}
T tmp2;
store_le<T>(&tmp2, 4);
if (memcmp(&tmp2, cst_4_le, sizeof(T)) != 0) {
std::cerr << Name << ": error storing LE integer!" << std::endl;
return 1;
}
storeu_be<T>(&tmp2, 4);
if (memcmp(&tmp2, cst_4_be, sizeof(T)) != 0) {
std::cerr << Name << ": error storing BE integer!" << std::endl;
return 1;
}
return 0;
}
template <class T>
int test_signed(const char* Name)
{
ALIGN(alignof(T)) uint8_t cst_minus10_le[sizeof(T)];
ALIGN(alignof(T)) uint8_t cst_minus10_be[sizeof(T)];
memset(&cst_minus10_le[0], 0xFF, sizeof(T));
memset(&cst_minus10_be[0], 0xFF, sizeof(T));
cst_minus10_le[0] = 0xF6;
cst_minus10_be[sizeof(T)-1] = 0xF6;
if (loadu_le<T>(cst_minus10_le) != -10) {
std::cerr << Name << ": error loading LE signed integer!" << std::endl;
return 1;
}
if (loadu_be<T>(cst_minus10_be) != -10) {
std::cerr << Name << ": error loading BE signed integer!" << std::endl;
return 1;
}
if (load_le<T>((T*) cst_minus10_le) != -10) {
std::cerr << Name << ": error loading LE signed integer!" << std::endl;
return 1;
}
if (load_be<T>((T*) cst_minus10_be) != -10) {
std::cerr << Name << ": error loading BE signed integer!" << std::endl;
return 1;
}
uint8_t tmp[sizeof(T)];
storeu_le<T>(tmp, -10);
if (memcmp(tmp, cst_minus10_le, sizeof(T)) != 0) {
std::cerr << Name << ": error storing LE integer!" << std::endl;
return 1;
}
storeu_be<T>((T*) tmp, -10);
if (memcmp(tmp, cst_minus10_be, sizeof(T)) != 0) {
std::cerr << Name << ": error storing BE integer!" << std::endl;
return 1;
}
T tmp2;
store_le<T>(&tmp2, -10);
if (memcmp(&tmp2, cst_minus10_le, sizeof(T)) != 0) {
std::cerr << Name << ": error storing LE integer!" << std::endl;
return 1;
}
storeu_be<T>(&tmp2, -10);
if (memcmp(&tmp2, cst_minus10_be, sizeof(T)) != 0) {
std::cerr << Name << ": error storing BE integer!" << std::endl;
return 1;
}
return 0;
}
#ifdef INTMEM_CPP20_SUPPORT
namespace {
constexpr uint8_t buf[] = {1,2,4,5,6,7,8,9};
static_assert(intmem::loadu_le<uint8_t>(buf) == 1U);
static_assert(intmem::loadu_be<uint8_t>(buf) == 1U);
static_assert(intmem::loadu_le<uint16_t>(buf) == 0x0201U);
static_assert(intmem::loadu_be<uint16_t>(buf) == 0x0102U);
static_assert(intmem::loadu_le<uint32_t>(buf) == 0x05040201U);
static_assert(intmem::loadu_be<uint32_t>(buf) == 0x01020405U);
static_assert(intmem::loadu_le<uint64_t>(buf) == 0x0908070605040201ULL);
static_assert(intmem::loadu_be<uint64_t>(buf) == 0x0102040506070809ULL);
static_assert(intmem::bswap<uint8_t>(1U) == 1U);
static_assert(intmem::bswap<uint16_t>(0x0102U) == 0x0201U);
static_assert(intmem::bswap<uint32_t>(0x01020405U) == 0x05040201U);
static_assert(intmem::bswap<uint64_t>(0x0102040506070809ULL) == 0x0908070605040201ULL);
static_assert(intmem::bswap((int8_t)1) == 1U);
static_assert(intmem::bswap((int16_t)0x0102) == 0x0201);
static_assert(intmem::bswap((int32_t)0x01020405) == 0x05040201);
static_assert(intmem::bswap((int64_t)0x0102040506070809LL) == 0x0908070605040201LL);
}
#endif
int main()
{
int Ret = 0;
Ret |= test_unsigned<uint8_t>("uint8_t");
Ret |= test_unsigned<uint16_t>("uint16_t");
Ret |= test_unsigned<uint32_t>("uint32_t");
Ret |= test_unsigned<uint64_t>("uint64_t");
Ret |= test_signed<int8_t>("int8_t");
Ret |= test_signed<int16_t>("int16_t");
Ret |= test_signed<int32_t>("int32_t");
Ret |= test_signed<int64_t>("int64_t");
if (Ret == 0) {
std::cout << "All tests are OK." << std::endl;
}
return Ret;
}