diff --git a/CPlusPlus/CPlusPlus.sln b/CPlusPlus/CPlusPlus.sln index 508f78b..d70db05 100644 --- a/CPlusPlus/CPlusPlus.sln +++ b/CPlusPlus/CPlusPlus.sln @@ -9,6 +9,10 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Forward_Declaration", "Forw EndProject Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Classes", "Classes\Classes.vcxproj", "{6254C365-0DB4-44EB-A7FD-3AFA5980A219}" EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Collections", "Collections\Collections.vcxproj", "{7F3BDA2C-AB30-4D85-8C4E-ABF7B99EA179}" +EndProject +Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Pointers", "Pointers\Pointers.vcxproj", "{2706F4B0-BA3F-49A4-BC54-59F9764A974F}" +EndProject Global GlobalSection(SolutionConfigurationPlatforms) = preSolution Debug|ARM64 = Debug|ARM64 @@ -55,6 +59,30 @@ Global {6254C365-0DB4-44EB-A7FD-3AFA5980A219}.Release|x64.Build.0 = Release|x64 {6254C365-0DB4-44EB-A7FD-3AFA5980A219}.Release|x86.ActiveCfg = Release|Win32 {6254C365-0DB4-44EB-A7FD-3AFA5980A219}.Release|x86.Build.0 = Release|Win32 + {7F3BDA2C-AB30-4D85-8C4E-ABF7B99EA179}.Debug|ARM64.ActiveCfg = Debug|ARM64 + {7F3BDA2C-AB30-4D85-8C4E-ABF7B99EA179}.Debug|ARM64.Build.0 = Debug|ARM64 + {7F3BDA2C-AB30-4D85-8C4E-ABF7B99EA179}.Debug|x64.ActiveCfg = Debug|x64 + {7F3BDA2C-AB30-4D85-8C4E-ABF7B99EA179}.Debug|x64.Build.0 = Debug|x64 + {7F3BDA2C-AB30-4D85-8C4E-ABF7B99EA179}.Debug|x86.ActiveCfg = Debug|Win32 + {7F3BDA2C-AB30-4D85-8C4E-ABF7B99EA179}.Debug|x86.Build.0 = Debug|Win32 + {7F3BDA2C-AB30-4D85-8C4E-ABF7B99EA179}.Release|ARM64.ActiveCfg = Release|ARM64 + {7F3BDA2C-AB30-4D85-8C4E-ABF7B99EA179}.Release|ARM64.Build.0 = Release|ARM64 + {7F3BDA2C-AB30-4D85-8C4E-ABF7B99EA179}.Release|x64.ActiveCfg = Release|x64 + {7F3BDA2C-AB30-4D85-8C4E-ABF7B99EA179}.Release|x64.Build.0 = Release|x64 + {7F3BDA2C-AB30-4D85-8C4E-ABF7B99EA179}.Release|x86.ActiveCfg = Release|Win32 + {7F3BDA2C-AB30-4D85-8C4E-ABF7B99EA179}.Release|x86.Build.0 = Release|Win32 + {2706F4B0-BA3F-49A4-BC54-59F9764A974F}.Debug|ARM64.ActiveCfg = Debug|ARM64 + {2706F4B0-BA3F-49A4-BC54-59F9764A974F}.Debug|ARM64.Build.0 = Debug|ARM64 + {2706F4B0-BA3F-49A4-BC54-59F9764A974F}.Debug|x64.ActiveCfg = Debug|x64 + {2706F4B0-BA3F-49A4-BC54-59F9764A974F}.Debug|x64.Build.0 = Debug|x64 + {2706F4B0-BA3F-49A4-BC54-59F9764A974F}.Debug|x86.ActiveCfg = Debug|Win32 + {2706F4B0-BA3F-49A4-BC54-59F9764A974F}.Debug|x86.Build.0 = Debug|Win32 + {2706F4B0-BA3F-49A4-BC54-59F9764A974F}.Release|ARM64.ActiveCfg = Release|ARM64 + {2706F4B0-BA3F-49A4-BC54-59F9764A974F}.Release|ARM64.Build.0 = Release|ARM64 + {2706F4B0-BA3F-49A4-BC54-59F9764A974F}.Release|x64.ActiveCfg = Release|x64 + {2706F4B0-BA3F-49A4-BC54-59F9764A974F}.Release|x64.Build.0 = Release|x64 + {2706F4B0-BA3F-49A4-BC54-59F9764A974F}.Release|x86.ActiveCfg = Release|Win32 + {2706F4B0-BA3F-49A4-BC54-59F9764A974F}.Release|x86.Build.0 = Release|Win32 EndGlobalSection GlobalSection(SolutionProperties) = preSolution HideSolutionNode = FALSE diff --git a/CPlusPlus/Classes/Vector3.h b/CPlusPlus/Classes/Vector3.h index 139cab9..8665e9b 100644 --- a/CPlusPlus/Classes/Vector3.h +++ b/CPlusPlus/Classes/Vector3.h @@ -8,4 +8,4 @@ struct Vector3 Vector3() : x(0.0f), y(0.0f), z(0.0f) {} Vector3(float _x, float _y, float _z) : x(_x), y(_y), z(_z) {} -}; \ No newline at end of file +}; diff --git a/CPlusPlus/Collections/Collections.vcxproj b/CPlusPlus/Collections/Collections.vcxproj new file mode 100644 index 0000000..9a7b6da --- /dev/null +++ b/CPlusPlus/Collections/Collections.vcxproj @@ -0,0 +1,188 @@ + + + + + Debug + Win32 + + + Release + Win32 + + + Debug + x64 + + + Release + x64 + + + Debug + ARM64 + + + Release + ARM64 + + + + 17.0 + Win32Proj + {7f3bda2c-ab30-4d85-8c4e-abf7b99ea179} + Collections + 10.0 + + + + Application + true + v143 + Unicode + + + Application + false + v143 + true + Unicode + + + 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 + + + + + Level3 + true + _DEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + + + + + Level3 + true + true + true + NDEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + + + + + Level3 + true + _DEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + + + + + Level3 + true + true + true + NDEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + + + + + + + + + + + + + \ No newline at end of file diff --git a/CPlusPlus/Collections/Collections.vcxproj.filters b/CPlusPlus/Collections/Collections.vcxproj.filters new file mode 100644 index 0000000..a821b21 --- /dev/null +++ b/CPlusPlus/Collections/Collections.vcxproj.filters @@ -0,0 +1,30 @@ + + + + + {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 + + + + + Source Files + + + Source Files + + + + + Header Files + + + \ No newline at end of file diff --git a/CPlusPlus/Collections/grid.cpp b/CPlusPlus/Collections/grid.cpp new file mode 100644 index 0000000..bd1af72 --- /dev/null +++ b/CPlusPlus/Collections/grid.cpp @@ -0,0 +1,6 @@ +#include "grid.h" + +int calculateIndex(int x, int y) +{ + return x + y * COLUMNS; +} diff --git a/CPlusPlus/Collections/grid.h b/CPlusPlus/Collections/grid.h new file mode 100644 index 0000000..6f9fb9b --- /dev/null +++ b/CPlusPlus/Collections/grid.h @@ -0,0 +1,6 @@ +#pragma once + +#define COLUMNS 10 +#define ROWS 5 + +int calculateIndex(int x, int y); \ No newline at end of file diff --git a/CPlusPlus/Collections/main.cpp b/CPlusPlus/Collections/main.cpp new file mode 100644 index 0000000..654c543 --- /dev/null +++ b/CPlusPlus/Collections/main.cpp @@ -0,0 +1,88 @@ +#include +#include +#include + +#include "grid.h" + +using namespace std; + +void printArray(int numbers[]); +void printArray(int numbers[], size_t count); + +int main() +{ + // C arrays + int numbers[10]; + + for (size_t i = 0; i < 10; i++) + { + numbers[i] = 0; + } + + int numbers2[] = { 0, 1, 2, 3, 4 }; + int numbers3[10] = { 0, 1, 2, 3, 4 }; + + numbers[0] = 10; + + cout << "numbers[5]: " << numbers[5] << endl; + + // 2D array - 10 columns, 5 rows + int grid[COLUMNS * ROWS] = {}; + grid[calculateIndex(3, 2)] = 10; // 4th column, 3rd row + + // size has to be always constant + const int count = 10; + int numbers4[count] = {}; + + int length = sizeof(numbers) / sizeof(numbers[0]); // works only with local constant sized arrays + for (size_t i = 0; i < size(numbers); i++) // works only with local constant sized arrays, but it is safer than sizeof + { + cout << numbers[i] << " "; + } + cout << endl; + + printArray(numbers); + printArray(numbers, size(numbers)); + + // "dynamic" (...) arrays + + // stl collections + vector numbers5; + vector numbers6 = { 0, 1, 2, 3, 4 }; + numbers5.push_back(10); // add an item at the end + numbers5.pop_back(); // remove the last item + numbers6[1] *= 2; + vector numbers7; + numbers7.reserve(100); + numbers7.shrink_to_fit(); + + printArray(numbers6.data(), numbers6.size()); + + list numbersList; + numbersList.push_back(10); + numbersList.push_front(0); + //numbersList[0] = 5; // random access is not available for lists + + return 0; +} + +void printArray(int numbers[]) +{ + int length = sizeof(numbers) / sizeof(numbers[0]); // works not outside of the local scope + cout << "sizeof(numbers): " << sizeof(numbers) << endl; + + //for (size_t i = 0; i < size(numbers); i++) // size is not working outside of the local scope + //{ + // cout << numbers[i] << " "; + //} + //cout << endl; +} + +void printArray(int numbers[], size_t count) +{ + for (size_t i = 0; i < count; i++) + { + cout << numbers[i] << " "; + } + cout << endl; +} diff --git a/CPlusPlus/Pointers/Pointers.vcxproj b/CPlusPlus/Pointers/Pointers.vcxproj new file mode 100644 index 0000000..1608621 --- /dev/null +++ b/CPlusPlus/Pointers/Pointers.vcxproj @@ -0,0 +1,188 @@ + + + + + Debug + Win32 + + + Release + Win32 + + + Debug + x64 + + + Release + x64 + + + Debug + ARM64 + + + Release + ARM64 + + + + 17.0 + Win32Proj + {2706f4b0-ba3f-49a4-bc54-59f9764a974f} + Pointers + 10.0 + + + + Application + true + v143 + Unicode + + + Application + false + v143 + true + Unicode + + + 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 + + + + + Level3 + true + _DEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + + + + + Level3 + true + true + true + NDEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + + + + + Level3 + true + _DEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + + + + + Level3 + true + true + true + NDEBUG;_CONSOLE;%(PreprocessorDefinitions) + true + + + Console + true + + + + + + + + + + + + + \ No newline at end of file diff --git a/CPlusPlus/Pointers/Pointers.vcxproj.filters b/CPlusPlus/Pointers/Pointers.vcxproj.filters new file mode 100644 index 0000000..54bcd79 --- /dev/null +++ b/CPlusPlus/Pointers/Pointers.vcxproj.filters @@ -0,0 +1,30 @@ + + + + + {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 + + + + + Source Files + + + Source Files + + + + + Header Files + + + \ No newline at end of file diff --git a/CPlusPlus/Pointers/functions.cpp b/CPlusPlus/Pointers/functions.cpp new file mode 100644 index 0000000..16d00f5 --- /dev/null +++ b/CPlusPlus/Pointers/functions.cpp @@ -0,0 +1,26 @@ +#include "functions.h" + +void changeInteger(int n) +{ + n *= 2; +} + +int changeIntegerPerReturn(int n) +{ + return n * 2; +} + +bool changeIntegerPerPointer(int* pN) +{ + if (pN == nullptr) return false; + + *pN *= 2; + + return true; +} + +bool changeIntegerPerReference(int& n) +{ + n *= 2; + return true; +} diff --git a/CPlusPlus/Pointers/functions.h b/CPlusPlus/Pointers/functions.h new file mode 100644 index 0000000..d223ff1 --- /dev/null +++ b/CPlusPlus/Pointers/functions.h @@ -0,0 +1,6 @@ +#pragma once + +void changeInteger(int n); +int changeIntegerPerReturn(int n); +bool changeIntegerPerPointer(int* pN); +bool changeIntegerPerReference(int& n); \ No newline at end of file diff --git a/CPlusPlus/Pointers/main.cpp b/CPlusPlus/Pointers/main.cpp new file mode 100644 index 0000000..58c28d1 --- /dev/null +++ b/CPlusPlus/Pointers/main.cpp @@ -0,0 +1,37 @@ +#include + +#include "functions.h" + +using namespace std; + +int main() +{ + // general + int* pNumber = nullptr; // pointer definition, always initialize a pointer (at least with nullptr) + pNumber = new int(0); // creates a new integer value on the heap + + cout << "size of pointer: " << sizeof(pNumber) << endl; + cout << "size of pointer data: " << sizeof(*pNumber) << endl; + + *pNumber = 789; + + //pNumber = new int(0); // BAD BAD - memory leak, because we override an existin g pointer address with a new one without saving or deleting the old one + + // here are 100s lines of code + + if (pNumber != nullptr) + { + delete pNumber; + pNumber = nullptr; + } + + // pointer as references outside local scope + int number = 10; + changeInteger(number); + number = changeIntegerPerReturn(number); + changeIntegerPerPointer(&number); + changeIntegerPerPointer(pNumber); + changeIntegerPerReference(number); + + return 0; +} \ No newline at end of file