diff --git a/bits 3.sln b/bits 3.sln new file mode 100644 index 0000000..74ac928 --- /dev/null +++ b/bits 3.sln @@ -0,0 +1,31 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.8.34330.188 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "bits 3", "bits 3\bits 3.vcxproj", "{966AB6D0-A6A3-487E-88D8-4CD1C5DDEA6B}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug|x64 = Debug|x64 + Debug|x86 = Debug|x86 + Release|x64 = Release|x64 + Release|x86 = Release|x86 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {966AB6D0-A6A3-487E-88D8-4CD1C5DDEA6B}.Debug|x64.ActiveCfg = Debug|x64 + {966AB6D0-A6A3-487E-88D8-4CD1C5DDEA6B}.Debug|x64.Build.0 = Debug|x64 + {966AB6D0-A6A3-487E-88D8-4CD1C5DDEA6B}.Debug|x86.ActiveCfg = Debug|Win32 + {966AB6D0-A6A3-487E-88D8-4CD1C5DDEA6B}.Debug|x86.Build.0 = Debug|Win32 + {966AB6D0-A6A3-487E-88D8-4CD1C5DDEA6B}.Release|x64.ActiveCfg = Release|x64 + {966AB6D0-A6A3-487E-88D8-4CD1C5DDEA6B}.Release|x64.Build.0 = Release|x64 + {966AB6D0-A6A3-487E-88D8-4CD1C5DDEA6B}.Release|x86.ActiveCfg = Release|Win32 + {966AB6D0-A6A3-487E-88D8-4CD1C5DDEA6B}.Release|x86.Build.0 = Release|Win32 + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection + GlobalSection(ExtensibilityGlobals) = postSolution + SolutionGuid = {0E164382-A85B-4D57-AC24-AD76C4479BF6} + EndGlobalSection +EndGlobal diff --git a/bits 3/bits 3.cpp b/bits 3/bits 3.cpp new file mode 100644 index 0000000..c302e75 --- /dev/null +++ b/bits 3/bits 3.cpp @@ -0,0 +1,130 @@ +#include +#include +#include + +using namespace std; + +typedef struct Student { + uint8_t name[17]; + uint16_t year = 2000; + float score = 5.0; + uint8_t sex : 1; + uint16_t courses = 3; + Student* starosta = 0; +}; + +void print_in_hex(uint8_t byte) { + cout << setfill('0') << setw(2) << hex << (uint16_t)byte << " "; +} + +void print_in_hex(const void* data, size_t size) { + for (size_t i = 0; i < size; i++) { + cout << setfill('0') << setw(2) << hex << (uint16_t) * ((uint8_t*)data + i) << " "; + + if ((i + 1) % 16 == 0) + cout << endl; + } +} + +void print_in_binary(uint8_t byte) { + cout << setfill('0') << setw(8) << bitset<8>(byte) << " "; +} + +void print_in_binary(const void* data, size_t size) { + for (size_t i = 0; i < size; i++) { + cout << setfill('0') << setw(8) << bitset<8>(*((uint8_t*)data + i)) << " "; + + if ((i + 1) % 4 == 0) + cout << endl; + } +} + +int main() +{ + Student group[3]; + + strcpy_s((char*)group[0].name, sizeof(Student::name), "Anton"); + group[0].sex = 1; + + strcpy_s((char*)group[1].name, sizeof(Student::name), "Ivan"); + group[1].sex = 0; + group[1].starosta = &group[0]; + + strcpy_s((char*)group[2].name, sizeof(Student::name), "Sergey"); + group[2].sex = 1; + group[2].starosta = &group[0]; + + // адрес и размер массива + void* groupAddr = &group[0]; + cout << "Array 'group' at address "; + print_in_hex(&groupAddr, sizeof(void*)); + cout << ", size " << dec << sizeof(group) << " bytes"; + cout << endl << endl; + + // адреса и размеры всех элементов массива + for (size_t i = 0; i < 3; i++) { + void* groupAddr = &group[i]; + cout << "group[" << i << "] at address "; + print_in_hex(&groupAddr, sizeof(void*)); + cout << ", size " << dec << sizeof(group[i]) << " bytes"; + cout << endl; + } + + // для всех полей одного из элементов ... + cout << endl << "group[1]:" << endl; + uint8_t* recordAddr = (uint8_t*)&group[1]; + + cout << ">>name at address "; + uint8_t* fieldAddr = recordAddr + offsetof(Student, name); + print_in_hex(&fieldAddr, sizeof(void*)); + cout << ", offset " << offsetof(Student, name) << ", size " << dec << sizeof(Student::name) << endl << "Hex: " << endl; + print_in_hex(group[1].name, sizeof(Student::name)); + cout << endl << "Bin: " << endl; + print_in_binary(group[1].name, sizeof(Student::name)); + cout << endl; + + cout << ">>year at address "; + fieldAddr = recordAddr + offsetof(Student, year); + print_in_hex(&fieldAddr, sizeof(void*)); + cout << ", offset " << offsetof(Student, year) << ", size " << dec << sizeof(Student::year) << endl << "Hex: " << endl; + print_in_hex(&group[1].year, sizeof(Student::year)); + cout << endl << "Bin: " << endl; + print_in_binary(&group[1].year, sizeof(Student::year)); + cout << endl; + + cout << ">>score at address "; + fieldAddr = recordAddr + offsetof(Student, score); + print_in_hex(&fieldAddr, sizeof(void*)); + cout << ", offset " << offsetof(Student, score) << ", size " << dec << sizeof(Student::score) << endl << "Hex: " << endl; + print_in_hex(&group[1].score, sizeof(Student::score)); + cout << endl << "Bin: " << endl; + print_in_binary(&group[1].score, sizeof(Student::score)); + cout << endl; + + cout << ">>courses at address "; + fieldAddr = recordAddr + offsetof(Student, courses); + print_in_hex(&fieldAddr, sizeof(void*)); + cout << ", offset " << offsetof(Student, courses) << ", size " << dec << sizeof(Student::courses) << endl << "Hex: " << endl; + print_in_hex(&group[1].courses, sizeof(Student::courses)); + cout << endl << "Bin: " << endl; + print_in_binary(&group[1].courses, sizeof(Student::courses)); + cout << endl; + + cout << ">>starosta at address "; + fieldAddr = recordAddr + offsetof(Student, starosta); + print_in_hex(&fieldAddr, sizeof(void*)); + cout << ", offset " << offsetof(Student, starosta) << ", size " << dec << sizeof(Student::starosta) << endl << "Hex: " << endl; + print_in_hex(&group[1].starosta, sizeof(Student::starosta)); + cout << endl << "Bin: " << endl; + print_in_binary(&group[1].starosta, sizeof(Student::starosta)); + cout << endl; + + // все элементы массива в шестнадцатеричном виде + for (size_t i = 0; i < 3; i++) { + cout << "group[" << i << "]:" << endl; + print_in_hex(&group[i], sizeof(Student)); + cout << endl; + } + + return 0; +} \ No newline at end of file diff --git a/bits 3/bits 3.vcxproj b/bits 3/bits 3.vcxproj new file mode 100644 index 0000000..b3b1136 --- /dev/null +++ b/bits 3/bits 3.vcxproj @@ -0,0 +1,135 @@ + + + + + Debug + Win32 + + + Release + Win32 + + + Debug + x64 + + + Release + x64 + + + + 17.0 + Win32Proj + {966ab6d0-a6a3-487e-88d8-4cd1c5ddea6b} + bits3 + 10.0 + + + + Application + true + v143 + Unicode + + + Application + false + v143 + true + Unicode + + + Application + true + v143 + Unicode + + + Application + false + v143 + true + Unicode + + + + + + + + + + + + + + + + + + + + + + Level3 + true + WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + + + + + Level3 + true + true + true + WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + true + true + + + + + Level3 + true + _DEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + + + + + Level3 + true + true + true + NDEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + true + true + + + + + + + + + \ No newline at end of file diff --git a/bits 3/bits 3.vcxproj.filters b/bits 3/bits 3.vcxproj.filters new file mode 100644 index 0000000..38aea6e --- /dev/null +++ b/bits 3/bits 3.vcxproj.filters @@ -0,0 +1,22 @@ + + + + + {4FC737F1-C7A5-4376-A066-2A32D752A2FF} + cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx + + + {93995380-89BD-4b04-88EB-625FBE52EBFB} + h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd + + + {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} + rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms + + + + + Исходные файлы + + + \ No newline at end of file