gcc(gnu), clang(llvm)コンパイルエラー・警告比較(5) R_08_04.c。docker(159)
やってきました。
gcc(gnu) clang(llvm)コンパイルエラー比較
長らくごぶさたしていました。
MISRA の解説書は有料ですが、Codeは無償であげてくれています。
MISRA C:2012 Example-Suite
https://gitlab.com/MISRA/MISRA-C/MISRA-C-2012/Example-Suite
全体の記録は
Misra Example Suite at docker コンパイル完了までの道のり
https://qiita.com/kaizen_nagoya/items/71f04a0204d5a1114577
順にコンパイルエラーが出たものを比較し、
エラーを取るのなら取ってみます。
-Wall でコンパイルしています。
R_08
$ clang
R_08_01.c:22:8: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
extern x; /* Non-compliant - implicit int type */
~~~~~~ ^
R_08_01.c:25:8: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
extern f ( void ); /* Non-compliant - implicit int return type */
~~~~~~ ^
R_08_01.c:28:31: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
extern void g ( char c, const k ); /* Non-compliant - implicit int for parameter k */
~~~~~ ^
R_08_01.c:32:12: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
typedef ( *pfi )( void ); /* Non-compliant - implicit int return type */
~~~~~~~ ^
R_08_01.c:35:31: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
typedef void ( *pfv ) ( const x ); /* Non-compliant - implicit int for parameter x */
~~~~~ ^
R_08_01.c:41:10: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
const y; /* Non-compliant - implicit int type */
~~~~~ ^
R_08_01.c:47:17: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
const y1; /* Non-compliant - implicit int for member y */
~~~~~ ^
R_08_01.c:41:10: warning: unused variable 'y' [-Wunused-variable]
const y; /* Non-compliant - implicit int type */
^
R_08_01.c:42:18: warning: unused variable 'y_ok' [-Wunused-variable]
const int16_t y_ok; /* Compliant - explicit type */
^
9 warnings generated.
R_08_03.c:30:13: error: conflicting types for 'g3'
void g3 ( int * p1 ); /* Non-compliant - type qualifiers do not match
^
R_08_03.c:29:13: note: previous declaration is here
extern void g3 ( const int * p1 );
^
R_08_03.c:59:6: error: conflicting types for 'g3'
void g3 ( int * p1 ) /* also breaks R.8.13 */
^
R_08_03.c:29:13: note: previous declaration is here
extern void g3 ( const int * p1 );
^
2 errors generated.
R_08_04.c:27:17: warning: 'extern' variable has an initializer [-Wextern-initializer]
extern uint16_t speed = 6000u; /* Non-compliant - no declaration prior to this definition */
^
R_08_04.c:55:6: error: conflicting types for 'func43'
void func43 ( int16_t x, uint16_t y )
^
./R_08_04.h:28:13: note: previous declaration is here
extern void func43 ( int16_t x, int16_t y );
^
1 warning and 1 error generated.
R_08_08.c:25:16: warning: 'extern' variable has an initializer [-Wextern-initializer]
extern int32_t y8 = 10; /* definition: external linkage: Breaks rule 8.4 */
^
R_08_08.c:26:16: error: static declaration of 'y8' follows non-static declaration
static int32_t y8; /* internal linkage: Breaks rule 8.8 */
^
R_08_08.c:25:16: note: previous definition is here
extern int32_t y8 = 10; /* definition: external linkage: Breaks rule 8.4 */
^
R_08_08.c:44:16: error: static declaration of 'h8' follows non-static declaration
static int32_t h8 ( void ) /* definition : internal linkage. Breaks rule 1.3 */
^
R_08_08.c:43:9: note: previous declaration is here
int32_t h8 ( void ); /* declaration: external linkage */
^
1 warning and 2 errors generated.
R_08_13_2.c:21:7: error: read-only variable is not assignable
*p = 0; /* Constraint Error */
~~ ^
1 error generated.
$ gcc
R_08_01.c:22:8: warning: type defaults to 'int' in declaration of 'x' [-Wimplicit-int]
22 | extern x; /* Non-compliant - implicit int type */
| ^
R_08_01.c:25:8: warning: type defaults to 'int' in declaration of 'f' [-Wimplicit-int]
25 | extern f ( void ); /* Non-compliant - implicit int return type */
| ^
R_08_01.c:28:31: warning: type defaults to 'int' in declaration of 'k' [-Wimplicit-int]
28 | extern void g ( char c, const k ); /* Non-compliant - implicit int for parameter k */
| ^
R_08_01.c:32:12: warning: type defaults to 'int' in declaration of 'pfi' [-Wimplicit-int]
32 | typedef ( *pfi )( void ); /* Non-compliant - implicit int return type */
| ^~~
R_08_01.c:35:31: warning: type defaults to 'int' in declaration of 'x' [-Wimplicit-int]
35 | typedef void ( *pfv ) ( const x ); /* Non-compliant - implicit int for parameter x */
| ^
R_08_01.c: In function 'R_8_1':
R_08_01.c:41:10: warning: type defaults to 'int' in declaration of 'y' [-Wimplicit-int]
41 | const y; /* Non-compliant - implicit int type */
| ^
R_08_01.c:47:17: warning: type defaults to 'int' in declaration of 'y1' [-Wimplicit-int]
47 | const y1; /* Non-compliant - implicit int for member y */
| ^~
R_08_01.c:42:18: warning: unused variable 'y_ok' [-Wunused-variable]
42 | const int16_t y_ok; /* Compliant - explicit type */
| ^~~~
R_08_01.c:41:10: warning: unused variable 'y' [-Wunused-variable]
41 | const y; /* Non-compliant - implicit int type */
| ^
R_08_03.c:30:13: error: conflicting types for 'g3'
30 | void g3 ( int * p1 ); /* Non-compliant - type qualifiers do not match
| ^~
R_08_03.c:29:13: note: previous declaration of 'g3' was here
29 | extern void g3 ( const int * p1 );
| ^~
R_08_03.c:59:6: error: conflicting types for 'g3'
59 | void g3 ( int * p1 ) /* also breaks R.8.13 */
| ^~
R_08_03.c:29:13: note: previous declaration of 'g3' was here
29 | extern void g3 ( const int * p1 );
| ^~
R_08_04.c:27:17: warning: 'speed' initialized and declared 'extern'
27 | extern uint16_t speed = 6000u; /* Non-compliant - no declaration prior to this definition */
| ^~~~~
R_08_04.c:55:6: error: conflicting types for 'func43'
55 | void func43 ( int16_t x, uint16_t y )
| ^~~~~~
In file included from R_08_04.c:22:
R_08_04.h:28:13: note: previous declaration of 'func43' was here
28 | extern void func43 ( int16_t x, int16_t y );
| ^~~~~~
R_08_08.c:25:16: warning: 'y8' initialized and declared 'extern'
25 | extern int32_t y8 = 10; /* definition: external linkage: Breaks rule 8.4 */
| ^~
R_08_08.c:26:16: error: static declaration of 'y8' follows non-static declaration
26 | static int32_t y8; /* internal linkage: Breaks rule 8.8 */
| ^~
R_08_08.c:25:16: note: previous definition of 'y8' was here
25 | extern int32_t y8 = 10; /* definition: external linkage: Breaks rule 8.4 */
| ^~
R_08_08.c:44:16: error: static declaration of 'h8' follows non-static declaration
44 | static int32_t h8 ( void ) /* definition : internal linkage. Breaks rule 1.3 */
| ^~
R_08_08.c:43:9: note: previous declaration of 'h8' was here
43 | int32_t h8 ( void ); /* declaration: external linkage */
| ^~
R_08_13_2.c: In function 'h13':
R_08_13_2.c:21:7: error: assignment of read-only location '*p'
21 | *p = 0; /* Constraint Error */
| ^
In file included from clear_lib.c:10:
clear_lib.c: In function 'g':
clear_lib.c:261:6: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
261 | PR1((int)p,d);
| ^
misra_c.h:66:54: note: in definition of macro 'PR1'
66 | #define PR1(a,b) (void)printf(" "#a " = %" #b "\n", a)
| ^
clear_lib.c: In function 'use_const_volatile_char_ptr':
clear_lib.c:274:6: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
274 | PR1((int)cv_cp,d);
| ^
misra_c.h:66:54: note: in definition of macro 'PR1'
66 | #define PR1(a,b) (void)printf(" "#a " = %" #b "\n", a)
|
docker hubでの作業
docker hubからの起動はこちら。
$ docker run it kaizenjapan/misra_c_2012_example /bin/bash
参考資料
仮説・検証（173）C言語（C++)に対する誤解、曲解、無理解、爽快。
[C][C++]の国際規格案の例題をコンパイルするときの課題７つ。
https://qiita.com/kaizen_nagoya/items/5f4b155030259497c4de
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
MISRA C まとめ #include
https://qiita.com/kaizen_nagoya/items/f1a79a7cbd281607c7c9
どうやって MISRA Example Suiteをコンパイルするか
https://qiita.com/kaizen_nagoya/items/fbdbff5ff696e2ca7f00
ISO/IEC TS 17961:2013 C Secure Coding Rules(1) All list(to be confirmed)
https://qiita.com/kaizen_nagoya/items/54e056195c4f11b850a1
Autosar Guidelines C++14 example code compile list
https://qiita.com/kaizen_nagoya/items/8ccbf6675c3494d57a76
C++ N4741, N4606, N3242 Source Compile Error List
https://qiita.com/kaizen_nagoya/items/2e736e04339b340ffb4d
Author And Source
この問題について(gcc(gnu), clang(llvm)コンパイルエラー・警告比較(5) R_08_04.c。docker(159)), 我々は、より多くの情報をここで見つけました https://qiita.com/kaizen_nagoya/items/c753db14cc95a9303fa5著者帰属：元の著者の情報は、元のURLに含まれています。著作権は原作者に属する。
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