Had anybody ever find the fopen could be quite slow in windows (gcc + mingw) ?

I would like to do the profile and maybe write some test program later. But it will be really helpful if I know where to start.

I worried that the fopen in gcc may not be as good as Microsoft’s own version.

Hello, Any advise for C++ beginner? 😅 All i know about c++ is making algorithms for calculators,finding area and all that then I know basic OOP and inheritance. 🙂😅

Now learn how to program through practice lmao

Yea I'm on it learning everyday trying some new algorithms too hope it will help 😂

While you're at it learn patterns and best practices along the way

Is there anyone can solve algorithms

Is there any way to create an executable file(.exe) for c code in Linux so that the .exe file can be run on windows system too ??

Hi, someone has this problem C:\Users\mahdi\Desktop\project\main.cpp> g++ m1.cpp C:/Program Files/mingw-w64/x86_64-8.1.0-posix-seh-rt_v6-rev0/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/libmingw32.a(lib64_libmingw32_a-crt0_c.o):crt0_c.c:(.text.startup+0x2e): undefined reference to `WinMain' collect2.exe: error: ld returned 1 exit status

Hi, someone has this problem C:\Users\mahdi\Desktop\project\main.cpp> g++ m1.cpp C:/Program Files/mingw-w64/x86_64-8.1.0-posix-seh-rt_v6-rev0/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/libmingw32.a(lib64_libmingw32_a-crt0_c.o):crt0_c.c:(.text.startup+0x2e): undefined reference to `WinMain' collect2.exe: error: ld returned 1 exit status

how i can increase the heap size for qt apps ؟

Heap size? It depends on amount of RAM + swap available for the app on the target machine. You can either add more RAM or increase swap in your OS settings. Also if you're building x86 application, it's limited for something about 2 or 3 Gb of RAM (I don't remember which one), you may want to build it for x64.

But it will give you like 3 gb of memory total

Define a time and add overtime display time+overtime anyone clue

Define a time and add overtime display time+overtime anyone clue

Heap size? It depends on amount of RAM + swap available for the app on the target machine. You can either add more RAM or increase swap in your OS settings. Also if you're building x86 application, it's limited for something about 2 or 3 Gb of RAM (I don't remember which one), you may want to build it for x64.

My system has 8 GB of RAM, most of the time when I use a new keyword for create pointer , when i use this pointer i get sigsegv segmentation fault ,sometimes work fine !

You probably have UB in your code

ub ?

My system has 8 GB of RAM, most of the time when I use a new keyword for create pointer , when i use this pointer i get sigsegv segmentation fault ,sometimes work fine !

My system has 8 GB of RAM, most of the time when I use a new keyword for create pointer , when i use this pointer i get sigsegv segmentation fault ,sometimes work fine !

Thanks

undefined behavior

If I use the new keyword more than 3 times, I will face this problem

If I use the new keyword more than 3 times, I will face this problem

If I use the new keyword more than 3 times, I will face this problem

When learning about integers , I have seen this number, 2^32-1 What does it mean ? I have searched the internet , and it looks like it's the limit for the integers, Why the 2^32-1 ?

When learning about integers , I have seen this number, 2^32-1 What does it mean ? I have searched the internet , and it looks like it's the limit for the integers, Why the 2^32-1 ?

Just show your code, don't make nonsense sentence. It is not because using new keyword more than 3 times.

i try more than 10 different direction,But I get the same error again

32 binary states = 2^32

So , the limit is , 32 times 1, like 111111111..... For 32 times? If I convert it to decimal that's the limit?

This one , 2,147,483,647

This one , 2,147,483,647