link

• gcc 최신 버젼 다운 받기

• -std=c++2b같은거_컴파일옵션 정리 버젼별c++20+23+26 & C/C++ Support in Clang

  • -o -Wextra -Wall 같은거 정리

• 나름 잘 정리된 C++

• C++26

  • C++26관련 문서(p2996r5)
    • p2300등 여러가 지 문서 다 모아놓았음c++
    • p2300r10

• C++ 23

  • New C++ features in GCC 13

• Cpp practices

  • Cpp best practices

---

Code Generation in Rust vs C++26 | Posted Sep 30, 2024 Updated Oct 4, 2024 | By Barry Revzin|🔝|

• https://brevzin.github.io/c++/2024/09/30/annotations/

---

C++23 tutorial|🔝|

C++ Weekly - Ep 323 - C++23's auto{} and auto()

gcc command

g++ -std=c++2b -Wpedantic -Wall -Wextra -Wconversion -O3 -Werror -o main main.cpp

./main

C++23|🔝|

https://en.m.wikipedia.org/wiki/C%2B%2B23

C++23 Standard Library Preview - Jeff Garland - CppCon 2021|🔝|

https://youtu.be/ySsqD2e5uRQ

• CppCon 2021 -

  https://cppcon.org/

  https://github.com/CppCon/CppCon2020

---

Despite the pandemic the C++ committee is continuing to work towards C++23. This survey presentation provides students with a broad overview of the changes and new facilities in the C++23 standard library.

Compiler Explorer__web coding|🔝|

compiler explorer

CppCon|🔝|

https://github.com/CppCon/CppCon2023

https://github.com/CppCon/CppCon2022

https://github.com/CppCon/CppCon2021

https://github.com/CppCon/CppCon2020

https://github.com/CppCon

C++23|🔝|

https://www.modernescpp.com/index.php/ranges-improvements-with-c-23

https://en.cppreference.com/w/cpp/23

C++ 23 Forum|🔝|

https://cplusplus.com/forum/lounge/283965/

C++ Core Guidelines|🔝|

https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines

---

C/C++ Support in Clang|🔝|

• Clang implements the following published and upcoming ISO C++ standards:
  • https://clang.llvm.org/cxx_status.html
    • https://gcc.gnu.org/onlinedocs/gcc/C-Dialect-Options.html
      • https://stackoverflow.com/questions/78069644/how-do-i-use-c-26-with-gcc-13-2-0

Language Standard	Flag	Available in Clang?
C++2c C++26	-std=c++2c	Partial
C++23	-std=c++23 -std=c++2b	Partial
C++20	-std=c++20 -std=c++2a	Partial
C++17	-std=c++17	Clang 5
C++14	-std=c++14	Clang 3.4
C++11	-std=c++11	Clang 3.3
C++98/C++03	-std=c++98	Yes (other than export)
GNU 89	none, -std=gnu89
ANSI, ISO C90	-ansi, -std=c89
ISO C99	-std=c99
ISO C11	-std=c11

• (CS)컴퓨터 시스템 [ 3판 ] 김형신 저 | 퍼스트북 | 2016년 09월 06일(p35)

GCC / Clang|🔝|

-Wall -Wextra -Wshadow -Wnon-virtual-dtor -pedantic

• use these and consider the following (see descriptions below)

see descriptions below

• -lm - 필요하다면 표준 수학 함수를 추가한다.

• -pedantic - Warn on language extensions

• -Wall -Wextra reasonable and standard

• -Wshadow warn the user if a variable declaration shadows one from a parent context

• -Wnon-virtual-dtor warn the user if a class with virtual functions has a non-virtual destructor. This helps catch hard to track down memory errors

• -Wold-style-cast warn for c-style casts

• -Wcast-align warn for potential performance problem casts -Wunused warn on anything being unused

• -Woverloaded-virtual warn if you overload (not override) a virtual function

• -Wpedantic (all versions of GCC, Clang >= 3.2) warn if non-standard C++ is used

• -Wconversion warn on type conversions that may lose data

• -Wsign-conversion (Clang all versions, GCC >= 4.3) warn on sign conversions

• -Wmisleading-indentation (only in GCC >= 6.0) warn if indentation implies blocks where blocks do not exist

• -Wduplicated-cond (only in GCC >= 6.0) warn if if / else chain has duplicated conditions

• -Wduplicated-branches (only in GCC >= 7.0) warn if if / else branches have duplicated code

• -Wlogical-op (only in GCC) warn about logical operations being used where bitwise were probably wanted

• -Wnull-dereference (only in GCC >= 6.0) warn if a null dereference is detected

• -Wuseless-cast (only in GCC >= 4.8) warn if you perform a cast to the same type

• -Wdouble-promotion (GCC >= 4.6, Clang >= 3.8) warn if float is implicitly promoted to double

• -Wformat=2 warn on security issues around functions that format output (i.e., printf)

• -Wlifetime (only special branch of Clang currently) shows object lifetime issues

• -Wimplicit-fallthrough Warns when case statements fall-through. (Included with -Wextra in GCC, not in clang)

Consider using -Weverything and disabling the few warnings you need to on Clang

• -Weffc++ warning mode can be too noisy, but if it works for your project, use it also.

https://github.com/cpp-best-practices/cppbestpractices/blob/master/02-Use_the_Tools_Available.md

---