add collections

This commit is contained in:
2025-09-16 12:33:48 +02:00
parent 33af26ed44
commit 2dc23a4efc
4 changed files with 312 additions and 0 deletions
+14
View File
@@ -9,6 +9,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Forward_Declaration", "Forw
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Classes", "Classes\Classes.vcxproj", "{4949E46C-8711-4BEF-8919-4B818B823520}"
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Collections", "Collections\Collections.vcxproj", "{34173AE8-DCD5-46FE-AF4D-85FB110721BA}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|ARM64 = Debug|ARM64
@@ -55,6 +57,18 @@ Global
{4949E46C-8711-4BEF-8919-4B818B823520}.Release|x64.Build.0 = Release|x64
{4949E46C-8711-4BEF-8919-4B818B823520}.Release|x86.ActiveCfg = Release|Win32
{4949E46C-8711-4BEF-8919-4B818B823520}.Release|x86.Build.0 = Release|Win32
{34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Debug|ARM64.ActiveCfg = Debug|ARM64
{34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Debug|ARM64.Build.0 = Debug|ARM64
{34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Debug|x64.ActiveCfg = Debug|x64
{34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Debug|x64.Build.0 = Debug|x64
{34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Debug|x86.ActiveCfg = Debug|Win32
{34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Debug|x86.Build.0 = Debug|Win32
{34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Release|ARM64.ActiveCfg = Release|ARM64
{34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Release|ARM64.Build.0 = Release|ARM64
{34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Release|x64.ActiveCfg = Release|x64
{34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Release|x64.Build.0 = Release|x64
{34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Release|x86.ActiveCfg = Release|Win32
{34173AE8-DCD5-46FE-AF4D-85FB110721BA}.Release|x86.Build.0 = Release|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
+184
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@@ -0,0 +1,184 @@
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@@ -0,0 +1,22 @@
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+92
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@@ -0,0 +1,92 @@
#include <iostream>
#include <vector>
#include <list>
using namespace std;
int calculateIndex(int x, int y);
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;
}
numbers[0] = 10;
cout << "numbers[5]: " << numbers[5] << endl;
int numbers2[] = { 0, 1, 2, 3, 4 };
int numbers3[10] = { 0, 1, 2, 3, 4 };
// 2d array - 10 rows & 5 columns
int grid[10 * 5];
grid[calculateIndex(3, 7)] = 10; // 4th column, 8th row
// size/count have to be always const
const int count = 10;
int numbers4[count];
int length = sizeof(numbers) / sizeof(numbers[0]); // works locally only, arrays with const length
for (size_t i = 0; i < size(numbers2); i++) // std::size is working with locally const length arrays only
{
cout << numbers2[i] << " ";
}
cout << endl;
printArray(numbers4);
printArray(numbers4, size(numbers4));
// "dynamic" (...) arrays
// stl collections
vector<int> numbers5;
vector<int> numbers6 = { 0, 1, 2, 3, 4 };
numbers5.push_back(10); // add an item at the end
numbers5.pop_back(); // removed an item at the end
numbers6[2] *= 2;
vector<int> numbers7;
numbers7.reserve(100);
numbers7.shrink_to_fit();
printArray(numbers6.data(), numbers6.size());
list<int> numbersList;
numbersList.push_back(10);
numbersList.push_front(0);
//numbersList[0] = 100; // random access is not available for lists
return 0;
}
int calculateIndex(int x, int y)
{
return x + y * 5;
}
void printArray(int numbers[])
{
int length = sizeof(numbers) / sizeof(numbers[0]); // works not outside of local scope
cout << "sizeof(numbers) (printArray): " << sizeof(numbers) << endl;
//for (size_t i = 0; i < size(numbers); i++) // std::size is not working outside of 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;
}