はじめに(Introduction)
N4910 Working Draft, Standard for Programming Language C++
n4910は、ISO/IEC JTC1 SC22 WG21の作業原案(Working Draft)です。
公式のISO/IEC 14882原本ではありません。
ISO/IEC JTC1 SC22 WG21では、可能な限り作業文書を公開し、幅広い意見を求めています。
一連の記事はコード断片をコンパイルできる形にする方法を検討してコンパイル、リンク、実行して、規格案の原文と処理系(g++, Clang++)との違いを確認し、技術内容を検討し、ISO/IEC JTC1 SC22 WG21にフィードバックするために用います。
また、CERT C++, MISRA C++等のコーディング標準のコード断片をコンパイルする際の参考にさせていただこうと考えています。CERT C++, MISRA C++が標準化の動きとの時間的なずれがあれば確認できれば幸いです。また、boostライブラリとの関連、Linux OS, TOPPERSカーネル、g++(GCC), clang++(LLVM）との関係も調査中です。
何か、抜け漏れ、耳より情報がありましたらおしらせくださると幸いです。
<この項は書きかけです。順次追記します。>
背景(back ground)
C/C++でコンパイルエラーが出ると、途方にくれることがしばしばあります。
何回かに１回は、該当するエラーが検索できます。
ただ、条件が違っていて、そこでの修正方法では目的を達成しないこともしばしばです。いろいろな条件のコンパイルエラーとその対応方法について、広く記録することによって、いつか同じエラーに遭遇した時にやくに立つことを目指しています。
この半年の間で、三度、自分のネットでの記録に助けられたことがあります。
また過去に解決できなかった記録を１０種類以上、最近になって解決できたことがあります。それは、主に次の３つの情報に基づいています。
https://stackoverflow.com
https://cpprefjp.github.io
http://ja.cppreference.com/
また
https://researchmap.jp/joub9b3my-1797580/#_1797580
に記載したサイトのお世話になっています。
作業方針(sequence)
Clang++では-std=c++03, C++2bの2種類
g++では-std=c++03, c++2bの２種類
でコンパイルし、
１）コンパイルエラーを収集する。
２）コンパイルエラーをなくす方法を検討する。
コンパイルエラーになる例を示すだけが目的のコードは、コンパイルエラーをなくすのではなく、コンパイルエラーの種類を収集するだけにする。
文法を示すのが目的のコード場合に、コンパイルエラーをなくすのに手間がかかる場合は、順次作業します。
３）リンクエラーをなくす方法を検討する。
文法を示すのが目的のコード場合に、リンクエラーをなくすのに手間がかかる場合は、順次作業します。
４）意味のある出力を作る。
コンパイル、リンクが通っても、意味のある出力を示そうとすると、コンパイル・リンクエラーが出て収拾できそうにない場合がある。順次作業します。
１）だけのものから４）まで進んだものと色々ある状態です。一歩でも前に進むご助言をお待ちしています。「検討事項」の欄に現状を記録するようにしています。
C++N4910:2022 Standard Working Draft on ISO/IEC 14882(0) sample code compile list
C++N4741, 2018 Standard Working Draft on ISO/IEC 14882 sample code compile list
C++N4606, 2016符号断片編纂一覧(example code compile list)
C++N4606, 2016 Working Draft 2016, ISO/IEC 14882, C++ standard(1) Example code compile list
https://qiita.com/kaizen_nagoya/items/df5d62c35bd6ed1c3d43/
C++N3242, 2011 sample code compile list on clang++ and g++
編纂器(Compiler)
clang++ --version
Debian clang version 14.0.5-++20220610033153+c12386ae247c-1~exp1~20220610153237.151
Target: x86_64-pc-linux-gnu, Thread model: posix, InstalledDir: /usr/bin
g++- --version
g++ (GCC) 12.1.0 Copyright (C) 2022 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12.2.4.2.6 List-initialization sequence [over.ics.list] C++N4910:2022 (188) p339.cpp
算譜(source code)
p339.cpp
// C++N4910 Committee Draft, Standard for Programming Language C++
// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/n4910.pdf
const char * n4910 = "12.2.4.2.6 List-initialization sequence [over.ics.list] C++N4910:2022 (188) p339.cpp";
// Debian clang version 14.0.5-++20220610033153+c12386ae247c-
// g++ (GCC) 12.1.0 Copyright (C) 2022 Free Software Foundation, Inc.
// Edited by Dr. Ogawa Kiyoshi. Compile procedure and results record.
// C++N4910:2022 Standard Working Draft on ISO/IEC 14882(0) sample code compile list
// https://qiita.com/kaizen_nagoya/items/fc957ddddd402004bb91
#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cassert>
#include <coroutine>
#include <vector>
#include <complex>
#include <map>
#include <atomic>
#include <unordered_map>
#include <typeinfo>
using namespace std;
// Example 1
struct A {
int x, y;
};
struct B {
int y, x;
};
void f(A a, int);
void f(B b, ...);
// #1 // #2 // #3 // #4
// OK; cal ls #1
// error: selects #1, initialization of a fails
// due to non-matching member order (9.4.5)
// error: ambiguous between #3 and #4
void g(A a);
void g(B b);
void h() {
f({.x = 1,.y= 2}, 0);
f({.y = 2,.x=1}, 0);
g({.x = 1,.y=2});
}
// [Example 2:
void f2(std::initializer_list<int>);
f2( {} );
f2( {1,2,3} );
f2( {'a','b'} );
f2( {1.0} );
// OK, f(initializer_list<int>) identity conversion
// OK, f(initializer_list<int>) identity conversion
// OK, f(initializer_list<int>) integral promotion
// error: narrowing
struct A2 {
A2(std::initializer_list<double>); // #1 A(std::initializer_list<complex<double>>); // #2
A2(std::initializer_list<std::string>);
};
// #3
A2 a{ 1.0,2.0 };
void g(A);
g2({ "foo", "bar" });
typedef int IA[3];
void h(const IA&);
h2({ 1, 2, 3 });
// OK, uses #1
// OK, uses #3
// OK, identity conversion
// [Example 3:
struct A3 {
A3(std::initializer_list<int>);
};
void f3(A3);
f3( {'a', 'b'} );
struct B3 {
B3(int, double);
};
void g3(B3);
g3( {'a', 'b'} );
g3( {1.0, 1.0} );
void f3(B3);
f3( {'a', 'b'} );
struct C3 {
C3(std::string);
};
void h3(C3);
h3({"foo"});
struct D3 {
D3(A3, C3);
};
void i(D3);
i({ {1,2}, {"bar"} });
// OK, f(A(std::initializer_list<int>)) user-defined conversion
// OK, g(B(int, double)) user-defined conversion
// error: narrowing
// error: ambiguous f(A) or f(B)
// OK, h(C(std::string("foo")))
// OK, i(D(A(std::initializer_list<int>{1,2}), C(std::string("bar"))))
// [Example 4:
struct A4 {
int m1;
double m2;
};
void f4(A4);
f4( {'a', 'b'} );
f4( {1.0} );
// OK, f(A(int,double)) user-defined conversion // error: narrowing
// [Example 5:
struct A5 {
int m1;
double m2;
};
void f(const A5&);
f5( {'a', 'b'} );
f5( {1.0} );
// OK, f(A(int,double)) user-defined conversion
// error: narrowing
void g5(const double &);
g5({1});
// same conversion as int to double 10 Otherwise, if the parameter type is not a class:
// [Example 6:
void f6(int);
f6( {'a'} );
f6( {1.0} );
// OK, same conversion as char to int
// error: narrowing
// [Example 7:
void f7(int);
f7( { } ); // OK, identity conversion
int main() {
cout << n4910 << endl;
return EXIT_SUCCESS;
}
Script
clgc.sh
#!/bin/sh
rm $1l
rm $1g
echo "$ clang++ $1.cpp -std=03 -o $1l -I. -Wall"
clang++ $1.cpp -std=c++03 -o $1l -I. -Wall
if [ -e $1l ]; then
./$1l
fi
rm $1l
echo "$ clang++ $1.cpp -std=2b -o $1l -I. -Wall"
clang++ $1.cpp -std=c++2b -o $1l -I. -Wall
if [ -e $1l ]; then
./$1l
fi
echo "\r"
echo "$ g++ $1.cpp -std=03 -o $1g -I. -Wall"
g++ $1.cpp -std=c++03 -o $1g -I. -Wall
if [ -e $1g ]; then
./$1g
fi
rm $1g
echo "\r"
echo "$ g++ $1.cpp -std=2b -o $1g -I. -Wall"
g++ $1.cpp -std=c++2b -o $1g -I. -Wall
if [ -e $1g ]; then
./$1g
fi
編纂・実行結果(compile and go)
bash
# ./clgc.sh p339
$ clang++ p339.cpp -std=c++03 -o p339l -I. -Wall
In file included from p339.cpp:19:
In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/atomic:38:
/usr/bin/../lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/bits/c++0x_warning.h:32:2: error: This file requires compiler and library support for the ISO C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
#error This file requires compiler and library support \
^
p339.cpp:38:7: error: expected expression
f({.x = 1,.y= 2}, 0);
^
p339.cpp:39:7: error: expected expression
f({.y = 2,.x=1}, 0);
^
p339.cpp:40:3: error: expected expression
g({.x = 1,.y=2});
^
p339.cpp:43:6: error: variable has incomplete type 'void'
void f2(std::initializer_list<int>);
^
p339.cpp:43:14: error: no member named 'initializer_list' in namespace 'std'
void f2(std::initializer_list<int>);
~~~~~^
p339.cpp:43:34: error: expected '(' for function-style cast or type construction
void f2(std::initializer_list<int>);
~~~^
p339.cpp:43:35: error: expected expression
void f2(std::initializer_list<int>);
^
p339.cpp:44:1: error: C++ requires a type specifier for all declarations
f2( {} );
^
p339.cpp:44:5: error: expected expression
f2( {} );
^
p339.cpp:45:1: error: C++ requires a type specifier for all declarations
f2( {1,2,3} );
^
p339.cpp:45:5: error: expected expression
f2( {1,2,3} );
^
p339.cpp:46:1: error: C++ requires a type specifier for all declarations
f2( {'a','b'} );
^
p339.cpp:46:5: error: expected expression
f2( {'a','b'} );
^
p339.cpp:47:1: error: C++ requires a type specifier for all declarations
f2( {1.0} );
^
p339.cpp:47:5: error: expected expression
f2( {1.0} );
^
p339.cpp:53:9: error: no template named 'initializer_list' in namespace 'std'
A2(std::initializer_list<double>); // #1 A(std::initializer_list<complex<double>>); // #2
~~~~~^
p339.cpp:54:11: error: no template named 'initializer_list' in namespace 'std'
A2(std::initializer_list<std::string>);
~~~~~^
p339.cpp:57:7: error: expected ';' after top level declarator
A2 a{ 1.0,2.0 };
^
;
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
rm: cannot remove 'p339l': No such file or directory
$ clang++ p339.cpp -std=c++2b -o p339l -I. -Wall
p339.cpp:39:15: warning: ISO C++ requires field designators to be specified in declaration order; field 'y' will be initialized after field 'x' [-Wreorder-init-list]
f({.y = 2,.x=1}, 0);
^~~~
p339.cpp:39:13: note: previous initialization for field 'y' is here
f({.y = 2,.x=1}, 0);
^
p339.cpp:40:1: error: call to 'g' is ambiguous
g({.x = 1,.y=2});
^
p339.cpp:35:8: note: candidate function
void g(A a);
^
p339.cpp:36:8: note: candidate function
void g(B b);
^
p339.cpp:44:1: error: C++ requires a type specifier for all declarations
f2( {} );
^
p339.cpp:45:1: error: C++ requires a type specifier for all declarations
f2( {1,2,3} );
^
p339.cpp:46:1: error: C++ requires a type specifier for all declarations
f2( {'a','b'} );
^
p339.cpp:47:1: error: C++ requires a type specifier for all declarations
f2( {1.0} );
^
p339.cpp:59:3: error: C++ requires a type specifier for all declarations
g2({ "foo", "bar" });
^
p339.cpp:62:3: error: C++ requires a type specifier for all declarations
h2({ 1, 2, 3 });
^
p339.cpp:71:3: error: C++ requires a type specifier for all declarations
f3( {'a', 'b'} );
^
p339.cpp:76:3: error: C++ requires a type specifier for all declarations
g3( {'a', 'b'} );
^
p339.cpp:77:3: error: C++ requires a type specifier for all declarations
g3( {1.0, 1.0} );
^
p339.cpp:79:3: error: C++ requires a type specifier for all declarations
f3( {'a', 'b'} );
^
p339.cpp:84:3: error: C++ requires a type specifier for all declarations
h3({"foo"});
^
p339.cpp:89:3: error: C++ requires a type specifier for all declarations
i({ {1,2}, {"bar"} });
^
p339.cpp:101:1: error: C++ requires a type specifier for all declarations
f4( {'a', 'b'} );
^
p339.cpp:102:1: error: C++ requires a type specifier for all declarations
f4( {1.0} );
^
p339.cpp:109:1: error: C++ requires a type specifier for all declarations
f5( {'a', 'b'} );
^
p339.cpp:110:1: error: C++ requires a type specifier for all declarations
f5( {1.0} );
^
p339.cpp:114:1: error: C++ requires a type specifier for all declarations
g5({1});
^
p339.cpp:118:3: error: C++ requires a type specifier for all declarations
f6( {'a'} );
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
1 warning and 20 errors generated.
$ g++ p339.cpp -std=c++03 -o p339g -I. -Wall
In file included from /usr/local/include/c++/12.1.0/atomic:38,
from p339.cpp:19:
/usr/local/include/c++/12.1.0/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
32 | #error This file requires compiler and library support \
| ^~~~~
p339.cpp: In function 'void h()':
p339.cpp:38:7: warning: extended initializer lists only available with '-std=c++11' or '-std=gnu++11' [-Wc++11-extensions]
38 | f({.x = 1,.y= 2}, 0);
| ^
p339.cpp:39:7: warning: extended initializer lists only available with '-std=c++11' or '-std=gnu++11' [-Wc++11-extensions]
39 | f({.y = 2,.x=1}, 0);
| ^
p339.cpp:39:6: error: designator order for field 'A::x' does not match declaration order in 'A'
39 | f({.y = 2,.x=1}, 0);
| ~^~~~~~~~~~~~~~~~~~
p339.cpp:40:3: warning: extended initializer lists only available with '-std=c++11' or '-std=gnu++11' [-Wc++11-extensions]
40 | g({.x = 1,.y=2});
| ^
p339.cpp:40:2: error: call of overloaded 'g(<brace-enclosed initializer list>)' is ambiguous
40 | g({.x = 1,.y=2});
| ~^~~~~~~~~~~~~~~
p339.cpp:35:8: note: candidate: 'void g(A)'
35 | void g(A a);
| ^
p339.cpp:36:8: note: candidate: 'void g(B)'
36 | void g(B b);
| ^
p339.cpp: At global scope:
p339.cpp:43:6: error: variable or field 'f2' declared void
43 | void f2(std::initializer_list<int>);
| ^~
p339.cpp:43:14: error: 'initializer_list' is not a member of 'std'; did you mean 'uninitialized_fill'?
43 | void f2(std::initializer_list<int>);
| ^~~~~~~~~~~~~~~~
| uninitialized_fill
p339.cpp:43:31: error: expected primary-expression before 'int'
43 | void f2(std::initializer_list<int>);
| ^~~
p339.cpp:44:3: error: expected constructor, destructor, or type conversion before '(' token
44 | f2( {} );
| ^
p339.cpp:44:8: error: expected unqualified-id before ')' token
44 | f2( {} );
| ^
p339.cpp:45:3: error: expected constructor, destructor, or type conversion before '(' token
45 | f2( {1,2,3} );
| ^
p339.cpp:45:13: error: expected unqualified-id before ')' token
45 | f2( {1,2,3} );
| ^
p339.cpp:46:3: error: expected constructor, destructor, or type conversion before '(' token
46 | f2( {'a','b'} );
| ^
p339.cpp:46:15: error: expected unqualified-id before ')' token
46 | f2( {'a','b'} );
| ^
p339.cpp:47:3: error: expected constructor, destructor, or type conversion before '(' token
47 | f2( {1.0} );
| ^
p339.cpp:47:11: error: expected unqualified-id before ')' token
47 | f2( {1.0} );
| ^
p339.cpp:53:25: error: expected ')' before '<' token
53 | A2(std::initializer_list<double>); // #1 A(std::initializer_list<complex<double>>); // #2
| ~ ^
| )
p339.cpp:54:27: error: expected ')' before '<' token
54 | A2(std::initializer_list<std::string>);
| ~ ^
| )
p339.cpp:57:7: warning: extended initializer lists only available with '-std=c++11' or '-std=gnu++11' [-Wc++11-extensions]
57 | A2 a{ 1.0,2.0 };
| ^
p339.cpp:57:17: error: too many initializers for 'A2'
57 | A2 a{ 1.0,2.0 };
| ^
p339.cpp:59:5: error: expected constructor, destructor, or type conversion before '(' token
59 | g2({ "foo", "bar" });
| ^
p339.cpp:59:22: error: expected unqualified-id before ')' token
59 | g2({ "foo", "bar" });
| ^
p339.cpp:62:5: error: expected constructor, destructor, or type conversion before '(' token
62 | h2({ 1, 2, 3 });
| ^
p339.cpp:62:17: error: expected unqualified-id before ')' token
62 | h2({ 1, 2, 3 });
| ^
p339.cpp:68:29: error: expected ')' before '<' token
68 | A3(std::initializer_list<int>);
| ~ ^
| )
p339.cpp:71:5: error: expected constructor, destructor, or type conversion before '(' token
71 | f3( {'a', 'b'} );
| ^
p339.cpp:71:18: error: expected unqualified-id before ')' token
71 | f3( {'a', 'b'} );
| ^
p339.cpp:76:5: error: expected constructor, destructor, or type conversion before '(' token
76 | g3( {'a', 'b'} );
| ^
p339.cpp:76:18: error: expected unqualified-id before ')' token
76 | g3( {'a', 'b'} );
| ^
p339.cpp:77:5: error: expected constructor, destructor, or type conversion before '(' token
77 | g3( {1.0, 1.0} );
| ^
p339.cpp:77:18: error: expected unqualified-id before ')' token
77 | g3( {1.0, 1.0} );
| ^
p339.cpp:79:5: error: expected constructor, destructor, or type conversion before '(' token
79 | f3( {'a', 'b'} );
| ^
p339.cpp:79:18: error: expected unqualified-id before ')' token
79 | f3( {'a', 'b'} );
| ^
p339.cpp:84:5: error: expected constructor, destructor, or type conversion before '(' token
84 | h3({"foo"});
| ^
p339.cpp:84:13: error: expected unqualified-id before ')' token
84 | h3({"foo"});
| ^
p339.cpp:89:4: error: expected constructor, destructor, or type conversion before '(' token
89 | i({ {1,2}, {"bar"} });
| ^
p339.cpp:89:23: error: expected unqualified-id before ')' token
89 | i({ {1,2}, {"bar"} });
| ^
p339.cpp:101:3: error: expected constructor, destructor, or type conversion before '(' token
101 | f4( {'a', 'b'} );
| ^
p339.cpp:101:16: error: expected unqualified-id before ')' token
101 | f4( {'a', 'b'} );
| ^
p339.cpp:102:3: error: expected constructor, destructor, or type conversion before '(' token
102 | f4( {1.0} );
| ^
p339.cpp:102:11: error: expected unqualified-id before ')' token
102 | f4( {1.0} );
| ^
p339.cpp:109:3: error: expected constructor, destructor, or type conversion before '(' token
109 | f5( {'a', 'b'} );
| ^
p339.cpp:109:16: error: expected unqualified-id before ')' token
109 | f5( {'a', 'b'} );
| ^
p339.cpp:110:3: error: expected constructor, destructor, or type conversion before '(' token
110 | f5( {1.0} );
| ^
p339.cpp:110:11: error: expected unqualified-id before ')' token
110 | f5( {1.0} );
| ^
p339.cpp:114:3: error: expected constructor, destructor, or type conversion before '(' token
114 | g5({1});
| ^
p339.cpp:114:7: error: expected unqualified-id before ')' token
114 | g5({1});
| ^
p339.cpp:118:5: error: expected constructor, destructor, or type conversion before '(' token
118 | f6( {'a'} );
| ^
p339.cpp:118:13: error: expected unqualified-id before ')' token
118 | f6( {'a'} );
| ^
p339.cpp:119:5: error: expected constructor, destructor, or type conversion before '(' token
119 | f6( {1.0} );
| ^
p339.cpp:119:13: error: expected unqualified-id before ')' token
119 | f6( {1.0} );
| ^
p339.cpp:124:3: error: expected constructor, destructor, or type conversion before '(' token
124 | f7( { } ); // OK, identity conversion
| ^
p339.cpp:124:9: error: expected unqualified-id before ')' token
124 | f7( { } ); // OK, identity conversion
| ^
rm: cannot remove 'p339g': No such file or directory
$ g++ p339.cpp -std=c++2b -o p339g -I. -Wall
p339.cpp: In function 'void h()':
p339.cpp:39:6: error: designator order for field 'A::x' does not match declaration order in 'A'
39 | f({.y = 2,.x=1}, 0);
| ~^~~~~~~~~~~~~~~~~~
p339.cpp:40:2: error: call of overloaded 'g(<brace-enclosed initializer list>)' is ambiguous
40 | g({.x = 1,.y=2});
| ~^~~~~~~~~~~~~~~
p339.cpp:35:8: note: candidate: 'void g(A)'
35 | void g(A a);
| ^
p339.cpp:36:8: note: candidate: 'void g(B)'
36 | void g(B b);
| ^
p339.cpp: At global scope:
p339.cpp:44:3: error: expected constructor, destructor, or type conversion before '(' token
44 | f2( {} );
| ^
p339.cpp:44:8: error: expected unqualified-id before ')' token
44 | f2( {} );
| ^
p339.cpp:45:3: error: expected constructor, destructor, or type conversion before '(' token
45 | f2( {1,2,3} );
| ^
p339.cpp:45:13: error: expected unqualified-id before ')' token
45 | f2( {1,2,3} );
| ^
p339.cpp:46:3: error: expected constructor, destructor, or type conversion before '(' token
46 | f2( {'a','b'} );
| ^
p339.cpp:46:15: error: expected unqualified-id before ')' token
46 | f2( {'a','b'} );
| ^
p339.cpp:47:3: error: expected constructor, destructor, or type conversion before '(' token
47 | f2( {1.0} );
| ^
p339.cpp:47:11: error: expected unqualified-id before ')' token
47 | f2( {1.0} );
| ^
p339.cpp:59:5: error: expected constructor, destructor, or type conversion before '(' token
59 | g2({ "foo", "bar" });
| ^
p339.cpp:59:22: error: expected unqualified-id before ')' token
59 | g2({ "foo", "bar" });
| ^
p339.cpp:62:5: error: expected constructor, destructor, or type conversion before '(' token
62 | h2({ 1, 2, 3 });
| ^
p339.cpp:62:17: error: expected unqualified-id before ')' token
62 | h2({ 1, 2, 3 });
| ^
p339.cpp:71:5: error: expected constructor, destructor, or type conversion before '(' token
71 | f3( {'a', 'b'} );
| ^
p339.cpp:71:18: error: expected unqualified-id before ')' token
71 | f3( {'a', 'b'} );
| ^
p339.cpp:76:5: error: expected constructor, destructor, or type conversion before '(' token
76 | g3( {'a', 'b'} );
| ^
p339.cpp:76:18: error: expected unqualified-id before ')' token
76 | g3( {'a', 'b'} );
| ^
p339.cpp:77:5: error: expected constructor, destructor, or type conversion before '(' token
77 | g3( {1.0, 1.0} );
| ^
p339.cpp:77:18: error: expected unqualified-id before ')' token
77 | g3( {1.0, 1.0} );
| ^
p339.cpp:79:5: error: expected constructor, destructor, or type conversion before '(' token
79 | f3( {'a', 'b'} );
| ^
p339.cpp:79:18: error: expected unqualified-id before ')' token
79 | f3( {'a', 'b'} );
| ^
p339.cpp:84:5: error: expected constructor, destructor, or type conversion before '(' token
84 | h3({"foo"});
| ^
p339.cpp:84:13: error: expected unqualified-id before ')' token
84 | h3({"foo"});
| ^
p339.cpp:89:4: error: expected constructor, destructor, or type conversion before '(' token
89 | i({ {1,2}, {"bar"} });
| ^
p339.cpp:89:23: error: expected unqualified-id before ')' token
89 | i({ {1,2}, {"bar"} });
| ^
p339.cpp:101:3: error: expected constructor, destructor, or type conversion before '(' token
101 | f4( {'a', 'b'} );
| ^
p339.cpp:101:16: error: expected unqualified-id before ')' token
101 | f4( {'a', 'b'} );
| ^
p339.cpp:102:3: error: expected constructor, destructor, or type conversion before '(' token
102 | f4( {1.0} );
| ^
p339.cpp:102:11: error: expected unqualified-id before ')' token
102 | f4( {1.0} );
| ^
p339.cpp:109:3: error: expected constructor, destructor, or type conversion before '(' token
109 | f5( {'a', 'b'} );
| ^
p339.cpp:109:16: error: expected unqualified-id before ')' token
109 | f5( {'a', 'b'} );
| ^
p339.cpp:110:3: error: expected constructor, destructor, or type conversion before '(' token
110 | f5( {1.0} );
| ^
p339.cpp:110:11: error: expected unqualified-id before ')' token
110 | f5( {1.0} );
| ^
p339.cpp:114:3: error: expected constructor, destructor, or type conversion before '(' token
114 | g5({1});
| ^
p339.cpp:114:7: error: expected unqualified-id before ')' token
114 | g5({1});
| ^
p339.cpp:118:5: error: expected constructor, destructor, or type conversion before '(' token
118 | f6( {'a'} );
| ^
p339.cpp:118:13: error: expected unqualified-id before ')' token
118 | f6( {'a'} );
| ^
p339.cpp:119:5: error: expected constructor, destructor, or type conversion before '(' token
119 | f6( {1.0} );
| ^
p339.cpp:119:13: error: expected unqualified-id before ')' token
119 | f6( {1.0} );
| ^
p339.cpp:124:3: error: expected constructor, destructor, or type conversion before '(' token
124 | f7( { } ); // OK, identity conversion
| ^
p339.cpp:124:9: error: expected unqualified-id before ')' token
124 | f7( { } ); // OK, identity conversion
| ^
検討事項(agenda)
コンパイルエラーを取るか、コンパイルエラーの理由を解説する。
参考資料(reference)
cpprefjp - C++日本語リファレンス
コンパイラの実装状況
typedef は C++11 ではオワコン
C99からC++14を駆け抜けるC++講座
自己参照(self reference)
コピペコンパイルエラーあるある
C++ Error Message Collection(1)does not name a type, 11 articles
dockerにclang
docker gnu(gcc/g++) and llvm(clang/clang++)
コンパイル用shell script C版(clangとgcc)とC++版(clang++とg++)
Compare the contents of C++N4910:2022, C++N4741:2018 and C++N4606:2015
C++ sample list
clang++, g++コンパイルエラー方針の違いの例
astyle 使ってみた
C++N4606 Working Draft 2016, ISO/IEC 14882, C++ standardのコード断片をコンパイルするためにしていること
https://qiita.com/kaizen_nagoya/items/a8d7ee2f2e29e76c19c1
コンパイル用shell script C版(clangとgcc)とC++版(clang++とg++)
https://qiita.com/kaizen_nagoya/items/74220c0577a512c2d7da
Clang/Clang++(LLVM) gcc/g++(GNU) コンパイラ警告等比較
https://qiita.com/kaizen_nagoya/items/9a82b958cc3aeef0403f
C++2003とC++2017でコンパイルエラーになるならない事例集
https://qiita.com/kaizen_nagoya/items/a13ea3823441c430edff
Qiitaに投稿するCのStyle例(暫定)
https://qiita.com/kaizen_nagoya/items/946df1528a6a1ef2bc0d
cpprefjpのdecltypeをコンパイル試験
https://qiita.com/kaizen_nagoya/items/090909af702f0d5d8a67
MISRA C++ 5-0-16
https://qiita.com/kaizen_nagoya/items/7df2d4e05db724752a74
C++ Templates Part1 BASICS Chapter 3. Class Templates 3.2 Use of Class Template Stack stack1test.cpp
https://qiita.com/kaizen_nagoya/items/cd5fc49106fad5a4e9ed
ISO/IEC TS 17961:2013 C Secure Coding Rules(1) All list(to be confirmed)
https://qiita.com/kaizen_nagoya/items/54e056195c4f11b850a1
C言語（C++)に対する誤解、曲解、無理解、爽快。
https://qiita.com/kaizen_nagoya/items/3f3992c9722c1cee2e3a
C Puzzle Bookの有り難み5つ、C言語規格及びCコンパイラの特性を認識
https://qiita.com/kaizen_nagoya/items/d89a48c1536a02ecdec9
'wchar.h' file not found で困った clang++ macOS
https://qiita.com/kaizen_nagoya/items/de15cd46d657517fac11
Open POSIX Test Suiteの使い方を調べはじめました
https://qiita.com/kaizen_nagoya/items/644d5e407f5faf96e6dc
MISRA-C 2012 Referenceに掲載している文献の入手可能性を確認
https://qiita.com/kaizen_nagoya/items/96dc8b125e462d5575bb
どうやって MISRA Example Suiteをコンパイルするか
https://qiita.com/kaizen_nagoya/items/fbdbff5ff696e2ca7f00
MISRA C まとめ #include
https://qiita.com/kaizen_nagoya/items/f1a79a7cbd281607c7c9
「C++完全理解ガイド」の同意できること上位10
https://qiita.com/kaizen_nagoya/items/aa5744e0c4a8618c7671
＜この記事は個人の過去の経験に基づく個人の感想です。現在所属する組織、業務とは関係がありません。＞
文書履歴(document history)
ver. 0.01 初稿 20220702