*standard

It uses C99 mostly. C11 and C17 didnt add as many features to the language as C++11/C++17/C++20 did. So C99 is still very relevant today. But programming in C++03 mode would be frowned upon now. Most of the companies have moved to C++14 compilers now and the new style of c++ programming is called Modern C++ programming

So C hasn’t changed that much?

How do I know which version I'm using

You can program in old style C++ in modern compilers as well. Your code will compile just fine. From your other posts it looked like you are using Visual Code and gcc (probably from mingw). You would then likely be using a compiler that supports atleast C++17

should I declare functions like this

So C hasn’t changed that much?

No. Except for atomic library there is not a big change in C.

int main(void)

Or int main()

I usually use this page to find at which standard a C++ feature become available. https://en.cppreference.com/w/cpp/compiler_support

This have lots of things. Are these relevant to learn as a beginner?

int main(void)

In C, for declarations always use int func(void); For definitions int func(void) or int func() would both be equivalent

To follow the c standard int main(void)?

You can program in old style C++ in modern compilers as well. Your code will compile just fine. From your other posts it looked like you are using Visual Code and gcc (probably from mingw). You would then likely be using a compiler that supports atleast C++17

Yea I'm using mingw gcc

isn’t Mingw outdated?

For windows I think MSVC is much better

/get cbook

What's msvc? Btw what's the difference between MinGW and GCC?

This have lots of things. Are these relevant to learn as a beginner?

No, you don't need to think much about differences in standards, you can set up your compiler to use C++17 and you are fine for now, as you will progress you will understand when to update to C++20.

isn’t Mingw outdated?

It is not. You have a choice between MSYS or mingw. I have been told that MSYS supports newer compiler versions faster than mingw.

What's msvc? Btw what's the difference between MinGW and GCC?

Microsoft visual C/C++

It’s a compiler made by Microsoft for windows

No, you don't need to think much about differences in standards, you can set up your compiler to use C++17 and you are fine for now, as you will progress you will understand when to update to C++20.

Thanks 👍

What's msvc? Btw what's the difference between MinGW and GCC?

MSVC is Microsoft compiler, it goes with Visual Studio (which is IDE), it's a default choice for Windows, but not the only choice.

Microsoft visual C/C++

Does it need to be downloaded seperately or I have it with the visual studio

What's msvc? Btw what's the difference between MinGW and GCC?

Mingw is minimalist GCC for windows

GCC stands for GNU compiler collection

It support C/C++ and many more languages

it’s mainly for Linux but Mingw supports windows

Okay

/get cppbookguide

Is mingw some company name?

The best way to learn C/C++ is via book because they cover details

Is mingw some company name?

No it stands for minimalist GCC for windows

What's minimalist

It means small

Does it need to be downloaded seperately or I have it with the visual studio

You should have it with Visual Studio

You should have it with Visual Studio

Ok

Ok

/get cppbookguide

The best way to learn C++

No it stands for minimalist GCC for windows

When I started programming. I learnt that there is a compiler which compiles the code. But later when I downloaded compiler and ide. I got to know there are many compilers many names. So it's quite confusing in terms of what's actually compiling my code? Whether it's mingw/gcc or some other thing

It’s gcc that’s compiling your code because you are using Mingw

https://en.m.wikipedia.org/wiki/MinGW

GCC comes pre installed with Linux

It supports many languages but mingw only supports C/C++

What's g++

C++ compiler

G++ only compiles C++ code

Does it come pre installed with windows

Nah

Or with visual studio code

No

They have to be manually installed

https://en.m.wikipedia.org/wiki/Microsoft_Visual_C%2B%2B

https://en.m.wikipedia.org/wiki/Microsoft_Visual_C%2B%2B

Microsoft’s C/C++ compiler

Because I think I never downloaded it but today when I was learning a little about debugging, visual studio code asked me to make some json file and then it added g++ as a default to build any task

Yeah when you are compiling C++ code invoke it with “g++” when you are compiling C code invoke “gcc”

So mingw have both gcc and g++ right

Yeah

I don’t use windows but on there site it says supported languages C/C++

Alright

When I started programming. I learnt that there is a compiler which compiles the code. But later when I downloaded compiler and ide. I got to know there are many compilers many names. So it's quite confusing in terms of what's actually compiling my code? Whether it's mingw/gcc or some other thing

Any of: gcc, clang, msvc are compilers, any of these can compile your code. If go to details, when we say "compiler", we usually mean the whole set of tools that allow to build an application, that at least include compiler and linker, but also can include other tools. You also don't need to know all the details about the tools at the beginning (there are a lot of details), just pick some not outdated tools that you feel comfortable with.

Any of: gcc, clang, msvc are compilers, any of these can compile your code. If go to details, when we say "compiler", we usually mean the whole set of tools that allow to build an application, that at least include compiler and linker, but also can include other tools. You also don't need to know all the details about the tools at the beginning (there are a lot of details), just pick some not outdated tools that you feel comfortable with.

Thanks 👍

Android uses clang as a C/C++ compiler

Different systems use different compilers

My favorite compilers are Clang and GCC 🙂

Okay

Different compilers can have different times of compiling the code and running it?

Probably

Different compilers can have different times of compiling the code and running it?

Different compilers can have different compilation times, some compilers can produce more optimized code (that runs faster), but all three: msvc, clang and gcc are pretty fast and produce highly optimized code, so you don't need to worry about it usually.

Pavel what compiler do you use?

Pavel what compiler do you use?

I use MSVC to compile on windows, and gcc when compile on Linux (hopefully my code should also compile with clang, but I haven't tested it for a long time).

It should work

Under clang

It is not. You have a choice between MSYS or mingw. I have been told that MSYS supports newer compiler versions faster than mingw.

about that: i found out why they don't have gcc 11 yet. https://github.com/msys2/MINGW-packages/pull/9088 seems to be breaking some of their other packages.

about that: i found out why they don't have gcc 11 yet. https://github.com/msys2/MINGW-packages/pull/9088 seems to be breaking some of their other packages.

Oh ok. Thanks. 12 is almost ready now. They are in Alpha stage. So once the FQA/RQA is done, it will move into a Release Candidate stage and once there we can use it for developer builds.

(lldb) p getRelativePosition().topLeft (Position) $3 = (x = 0, y = 0) (lldb) p getAbsolutePosition().topLeft (Position) $4 = (x = 0, y = 0) (lldb) auto local = Position(touch.x, touch.y) - getAbsolutePosition().topLeft; auto percentage = local / getRelativePosition().topLeft; auto pos = percentage * Position(newWidth, newHeight); what do i do when percentage is +inf, +inf

#include<stdio.h> #include<string.h> //#define UNIT_COST 450; void main() { float unitsConsumed; char Customername[20]; int customerid; float Totalcost; printf("Enter Customer id:"); scanf_s("%d", &customerid); printf("Enter Customer Name:"); scanf_s("%s", &Customername); printf("Enter Number of units consumed"); scanf_s("%f", &unitsConsumed); Totalcost = 450 * unitsConsumed; printf("Total cost of power is %f", Totalcost); }

Severity Code Description Project File Line Suppression State Warning C6064 Missing integer argument to 'scanf_s' that corresponds to conversion specifier '2'. Project1 C:\Users\kk2\source\repos\Project1\Project1\Source.c 13

what kind of warning is this vs is throwing? on line scanf_s(%s,&customername)

Severity Code Description Project File Line Suppression State Warning C6064 Missing integer argument to 'scanf_s' that corresponds to conversion specifier '2'. Project1 C:\Users\kk2\source\repos\Project1\Project1\Source.c 13

it literally tells you lmao

Missing integer argument to 'scanf_s' that corresponds to conversion specifier '2'.

Missing integer argument to 'scanf_s' that corresponds to conversion specifier '2'.

i gave buffer size as argument and warning is gone. Thank you