CS110 C++ Programming

 #pragma warning(disable:4996)

1	#pragma warning(disable:4996)

Clean code deveopment: http://lumiera.org/project/background/CleanCodeDevelopment.html

* [http://www.cplusplus.com/doc/tutorial Here] is a great C/C++ tutorial.
* [http://www.thegeekstuff.com/2012/08/gprof-tutorial/ GPROF Tutorial – How to use Linux GNU GCC Profiling Tool]

==Style==
*Clean code deveopment: http://lumiera.org/project/background/CleanCodeDevelopment.html

==Warning==
#pragma warning(disable:4996)

==PCH==

# Right-click on your project in the Solution Explorer.
# Click Properties at the bottom of the drop-down menu.
# At the top left of the Properties Pages, select All Configurations from the drop-down menu.
# Open the C/C++ tree and select Precompiled Headers
# Precompiled Header: Select Use (/Yu)
# Fill in the Precompiled Header File field. Standard is stdafx.h
# Click Okay
# If you do not have stdafx.h in your Header Files put it there. Edit it to #include all the headers you want precompiled.
# Put a file named stdafx.cpp into your project. Put #include “stdafx.h” at the top of it, and nothing else.
# Right-click on stdafx.cpp in Solution Explorer. Select Properties and All configurations again as in step 4 …
# but this time select Precompiled Header Create (/Yc). This will only bind to the one file stdafx.cpp.
# Put #include “stdafx.h” at the very top of all your source files. (Unix or cygwin users: find . -name “*.cpp” | xargs -n1 sed -i ‘1s/^/#include “stdafx.h”\n/’)
# Lucky 13. Cross your fingers and hit Build.

==Debug==
*[http://blog.ruofeidu.com/measure-execution-time-c-11/ DebugTimer: How to Measure Execution Time in C++ 11]

==Loops==
with vector
for (const auto& img : imgs) {
imgs_bak.push_back(img);
}

==IO==
* [http://phoenix.goucher.edu/~kelliher/cs43/mar26.html Low-Level File I/O in C]

count = fread(&zoffset_, sizeof(decltype(zoffset_)), 1, fp);

1	count = fread(&zoffset_, sizeof(decltype(zoffset_)), 1, fp);

===Binary===

    FILE * pFile;
    char buffer[] = { 'x' , 'y' , 'z' };
    pFile = fopen ("myfile.bin", "wb");
    fwrite (buffer , sizeof(char), sizeof(buffer), pFile);
    fclose (pFile);

FILE * pFile;

char buffer[] = { 'x' , 'y' , 'z' };

pFile = fopen ("myfile.bin", "wb");

fwrite (buffer , sizeof(char), sizeof(buffer), pFile);

fclose (pFile);

==Enum==

    enum class Color {RED, GREEN, BLUE}; 
    enum class Feelings {EXCITED, MOODY, BLUE};
    #include <cstdint>
    enum class Colors : std::int8_t { RED = 1, GREEN = 2, BLUE = 3 };

enum class Color {RED, GREEN, BLUE};

enum class Feelings {EXCITED, MOODY, BLUE};

#include <cstdint>

enum class Colors : std::int8_t { RED = 1, GREEN = 2, BLUE = 3 };

==Lambda==

    auto lambda = [](auto x, auto y) {return x + y;}; // C++14
    auto lambda = [](int x, int y) {return x + y;}; // C++11

    std::unique_ptr ptr(new int(10));
    auto lambda = [value = std::move(ptr)] {return *value;};

auto lambda = [](auto x, auto y) {return x + y;}; // C++14

auto lambda = [](int x, int y) {return x + y;}; // C++11

std::unique_ptr ptr(new int(10));

auto lambda = [value = std::move(ptr)] {return *value;};

==Function List==

    vector<function<int(int)>> funlist;
    for(int i = 0; i < 10; i++)
        funlist.push_back([=](int j){return i+j;});
    cout << funlist[5](8) << endl;

vector<function<int(int)>> funlist;

for(int i = 0; i < 10; i++)

funlist.push_back([=](int j){return i+j;});

cout << funlist[5](8) << endl;

==Numbers==

    int main()
    {
        int val = 0b11110000;
        std::cout << "Output mask: "
            << 0b1000'0001'1000'0000
            << "\n";
        std::cout << "Proposed salary: $"
            << 300'000.00
            << "\n";
        return 0;
    }

int main()

{

int val = 0b11110000;

std::cout << "Output mask: "

<< 0b1000'0001'1000'0000

<< "\n";

std::cout << "Proposed salary: $"

<< 300'000.00

<< "\n";

return 0;

}

==Debug==

    [[deprecated("Consider using something other than cranky")]]
    int cranky()
    {
        return 0;
    }

[[deprecated("Consider using something other than cranky")]]

int cranky()

{

return 0;

}

==References==
*[https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html Common Predefined C/C++ Macros]

CS110 C++ Programming

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