823 lines
17 KiB
C
823 lines
17 KiB
C
// To test:
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// ~/cppcheck/cppcheck --dump misra-test.c && python ../../misra.py -verify misra-test.c.dump
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#include "path\file.h" // 20.2
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#include /*abc*/ "file.h" // no warning
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#include PATH "file.h" // 20.3
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#include<file.h> // no warning
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#include <setjmp.h> // 21.4
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#include <signal.h> // 21.5
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#include <stdio.h> //21.6
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#include <wchar.h> //21.6
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#include <time.h> // 21.10
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#include <tgmath.h> // 21.11
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#include <fenv.h>
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typedef unsigned char u8;
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typedef unsigned short u16;
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typedef unsigned int u32;
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typedef signed int s32;
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typedef unsigned long long u64;
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/* // */ // 3.1
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/* /* */ // 3.1
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////
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// http://example.com // no warning
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void misra_3_2(int enable)
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{
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// This won't generate a violation because of subsequent blank line \
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int y = 0;
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int x = 0; // 3.2 non-compliant comment ends with backslash \
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if (enable != 0)
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{
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++x; // This is always executed
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// 3.2 potentially non-compliant comment ends with trigraph resolved to backslash ??/
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++y; // This is hidden if trigraph replacement is active
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}
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(void)printf("x=%i, y=%i\n", x, y);
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}
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extern int misra_5_1_extern_var_hides_var_x;
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extern int misra_5_1_extern_var_hides_var_y; //5.1
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int misra_5_1_var_hides_var________a;
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int misra_5_1_var_hides_var________b; int misra_5_1_var_hides_var________b1; int misra_5_1_var_hides_var________b2; //5.1
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int misra_5_1_var_hides_var________c; //5.1
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int misra_5_1_var_hides_var________d; //5.1
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int misra_5_1_var_hides_var________e; //5.1
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extern const uint8_t misra_5_2_var1;
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const uint8_t misra_5_2_var1 = 3; // no warning
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static int misra_5_2_var_hides_var______31x;
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static int misra_5_2_var_hides_var______31y;//5.2
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static int misra_5_2_function_hides_var_31x;
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void misra_5_2_function_hides_var_31y(void) {}//5.2
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void foo(void)
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{
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int i;
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switch(misra_5_2_func1()) //16.4 16.6
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{
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case 1:
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{
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do
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{
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for(i = 0; i < 10; i++)
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{
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if(misra_5_2_func3()) //14.4
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{
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int misra_5_2_var_hides_var_1____31x;
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int misra_5_2_var_hides_var_1____31y;//5.2
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}
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}
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} while(misra_5_2_func2()); //14.4
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}
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}
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}
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union misra_5_2_field_hides_field__63x { //19.2
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int misra_5_2_field_hides_field__31x;
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int misra_5_2_field_hides_field__31y;//5.2
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};
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struct misra_5_2_field_hides_field__63y { //5.2
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int misra_5_2_field_hides_field1_31x;
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int misra_5_2_field_hides_field1_31y;//5.2
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};
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const char *s41_1 = "\x41g"; // 4.1
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const char *s41_2 = "\x41\x42";
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const char *s41_3 = "\x41" "\x42";
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const char *s41_4 = "\x41" "g";
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const char *s41_5 = "\x41\xA";
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const char *s41_6 = "\xA\x41";
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const char *s41_7 = "\xAA\xg\x41"; // 4.1
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const char *s41_8 = "\xAA\x\x41"; // 4.1
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const char *s41_9 = "unknown\gsequence";
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const char *s41_10 = "simple\nsequence";
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const char *s41_11 = "string";
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int c41_3 = '\141t'; // 4.1
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int c41_4 = '\141\t';
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int c41_5 = '\0';
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int c41_6 = '\0\t';
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int c41_7 = '\12\t';
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int c41_8 = '\0t'; // 4.1
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int c41_9 = '\12';
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int c41_10 = '\12\n';
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int c41_11 = '\12n'; // 4.1
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int c41_12 = '\12323'; // 4.1
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int c41_13 = '\123\3';
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int c41_14 = '\777\777';
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int c41_15 = 'a';
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void misra_4_1()
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{
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(void)printf("\x41g"); // 4.1
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(void)printf("\x41\x42");
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(void)printf("\x41" "g");
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}
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const char *s42_1 = "String containing trigraphs ??-??-??"; // 4.2
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const char *s42_2 = "String containing trigraph???=preceded by question mark"; // 4.2
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const char *s42_3 = "No trigraph?(?'?)";
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void misra_4_2()
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{
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(void)printf("??=Trigraph\n"); // 4.2
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(void)printf("No?/Trigraph\n");
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}
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extern int misra_5_3_var_hides_var______31x;
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void misra_5_3_var_hides_function_31x (void) {}
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enum misra_5_3_Enum {
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misra_5_3_var_hidesenumconst_31x = 2,misra_5_3_enum_hidesfunction_31x = 5
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};
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void misra_5_3_func1(void)
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{
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int misra_5_3_var_hides_var______31y; //5.3
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int misra_5_3_var_hides_function_31y; //5.3
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int misra_5_3_var_hidesenumconst_31y; //5.3
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switch(misra_5_3_func2()) //16.4 16.6
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{
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case 1:
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{
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do
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{
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int misra_5_3_var_hides_var_1____31x;
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if(misra_5_3_func3()) //14.4
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{
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int misra_5_3_var_hides_var_1____31y = 1; //5.3
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}
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} while(misra_5_3_func2()); //14.4
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}
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}
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}
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void misra_5_3_enum_hidesfunction_31y(void) {} //5.3
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#define misra_5_4_macro_hides_macro__31x 1
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#define misra_5_4_param_hides_macro__31x 1
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#define misra_5_4_macro_hides_macro__31y 2 //5.4
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#define m1(misra_5_4_param_hides_macro__31y) 1 //5.4
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#define m2(misra_5_4_param_hides_param__31x,misra_5_4_param_hides_param__31y) 1 //5.4
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#ifdef misra_5_4_macro_hides_macro__31x
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#define misra_5_4_macro 1 // no warning
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#else
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#define misra_5_4_macro 2 // no warning
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#endif
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#define misra_5_5_var_hides_macro____31x 1
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#define misra_5_5_functionhides_macro31x 1
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#define misra_5_5_param_hides_macro__31x 1
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#define misra_5_5_tag_hides_macro____31x 1
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#define misra_5_5_hides_macro________31x 1
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int misra_5_5_var_hides_macro____31y; //5.5
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void misra_5_5_functionhides_macro31y(int misra_5_5_param_hides_macro__31y){} //5.5
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struct misra_5_5_tag_hides_macro____31y { //5.5
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int x;
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};
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void misra_5_5_func1()
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{
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switch(misra_5_5_func2()) //16.4 16.6
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{
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case 1:
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{
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do
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{
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if(misra_5_5_func3()) //14.4
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{
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int misra_5_5_hides_macro________31y; //5.5
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}
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} while(misra_5_5_func2()); //14.4
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}
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}
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}
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void misra_7_1() {
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int x = 066; // 7.1
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}
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void misra_7_3() {
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long misra_7_3_a = 0l; //7.3
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long misra_7_3_b = 0lU; //7.3
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long long misra_7_3_c = 0Ull; //7.3
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long long misra_7_3_d = 0ll; //7.3
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long double misra_7_3_e = 7.3l; //7.3
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}
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extern int a811[]; // 8.11
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enum misra_8_12_a { misra_a1 = 1, misra_a2 = 2, misra_a3, misra_a4 = 3 }; //8.12
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enum misra_8_12_b { misra_b1, misra_b2, misra_b3 = 3, misra_b4 = 3 }; // no-warning
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enum misra_8_12_c { misra_c1 = misra_a1, misra_c2 = 1 }; // no-warning
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enum misra_8_12_d { misra_d1 = 1, misra_d2 = 2, misra_d3 = misra_d1 }; // no-warning
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enum misra_8_12_e { misra_e1 = sizeof(int), misra_e2}; // no-crash
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void misra_8_14(char * restrict str) {} // 8.14
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void misra_9_5() {
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int x[] = {[0]=23}; // 9.5
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}
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void misra_10_1(uint8_t u) {
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int32_t i;
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i = 3 << 1; // 10.1
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i = (u & u) << 4; // no-warning
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}
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void misra_10_4(u32 x, s32 y) {
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z = x + 3; // 10.4
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enum misra_10_4_enuma { misra_10_4_A1, misra_10_4_A2, misra_10_4_A3 } a;
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enum misra_10_4_enumb { misra_10_4_B1, misra_10_4_B2, misra_10_4_B3 };
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if ( misra_10_4_B1 > misra_10_4_A1 ) //10.4
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{
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;
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}
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z = x + y; //10.4
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z = (a == misra_10_4_A3) ? x : y; //10.4
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z = (a == misra_10_4_A3) ? y : y; // no-warning
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}
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void misra_10_6(u8 x, u32 a, u32 b) {
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u16 y = x+x; // 10.6
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u16 z = ~u8 x ;//10.6
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u32 c = ( u16) ( u32 a + u32 b ); //10.6
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}
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void misra_10_8(u8 x, s32 a, s32 b) {
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y = (u16)x;
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y = (u16)(x+x); // 10.8
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y = (u16) (a + b) //10.8
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}
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struct Fred {}; struct Wilma {};
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void misra_11_3(u8* p, struct Fred *fred) {
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x = (u64*)p; // 11.3
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struct Wilma *wilma = (struct Wilma *)fred; // 11.3
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}
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void misra_11_4(u8*p) {
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u64 y = (u64)p; // 11.4
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u8 *misra_11_4_A = ( u8 * ) 0x0005;// 11.4
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s32 misra_11_4_B;
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u8 *q = ( u8 * ) misra_11_4_B; // 11.4
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}
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void misra_11_5(void *p) {
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u16 *p16;
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x = (u8 *)p; // 11.5
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p16 = p; // 11.5
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}
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void misra_11_6() {
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void *p;
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p = (void*)123; // 11.6
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x = (u64)p; // 11.6
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p = ( void * )0; // no-warning
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(void)p; // no-warning
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}
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void misra_11_7(int *p, float f) {
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x = ( float ) p; //11.7
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y = ( int * ) f; //11.7
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}
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void misra_11_7_extra(int *p, float f, bool b) {
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(void) p; // no-warning
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(void) f; // no-warning
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}
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char * misra_11_8_const(const char *str) { }
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char * misra_11_8(const char *str) {
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(void)misra_11_8_const(str); // no-warning
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return (char *)str; // 11.8
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}
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#define MISRA_11_9_NULL_1 (1-1)
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#define MISRA_11_9_NULL_2 ( void * ) 0
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#define MISRA_11_9_NULL_3 NULL
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void misra_11_9(){
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int *p1 = (5-5); //11.9
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int *p2 = MISRA_11_9_NULL_2 ; // no-warning
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int *p3 = MISRA_11_9_NULL_3 ; // no-warning
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if ( p1 == MISRA_11_9_NULL_1 ) //11.9
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{
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;
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}
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}
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void misra_12_1() {
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sz = sizeof x + y; // 12.1
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a = (b * c) + d;
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a = b << c + d; // 12.1
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}
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void misra_12_2(u8 x) {
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a = x << 8; // 12.2
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}
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void misra_12_3() {
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f((1,2),3); // TODO
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for (i=0;i<10;i++,j++){} // 12.3
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}
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void misra_12_4() {
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x = 123456u * 123456u; // 12.4
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}
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struct misra_13_1_t { int a; int b; };
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void misra_13_1(int *p) {
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volatile int v;
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int a[3] = {0, (*p)++, 2}; // 13.1
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int b[2] = {v,1};
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struct misra_13_1_t c = { .a=4, .b=5 }; // no fp
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}
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void misra_13_3() {
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x = y++; // 13.3
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}
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#define STRING_DEF_13_4 "This is a string"
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typedef struct
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{
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char string[sizeof(STRING_DEF_13_4)];
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} s13_4_t;
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static s13_4_t s13_4 =
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{
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.string = STRING_DEF_13_4 // no-warning
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};
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void misra_13_4() {
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if (x != (y = z)) {} // 13.4
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else {}
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}
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void misra_13_5() {
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if (x && (y++ < 123)){} // 13.5
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else {}
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}
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void misra_13_6() {
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return sizeof(x++); // 13.6
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}
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void misra_14_1() {
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for (float f=0.1f; f<1.0f; f += 0.1f){} // 14.1
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float a = 0.0f;
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int b = 10;
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while ((a<100.0f) || (b > 100)) //14.1
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{
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a++;
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}
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do
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{
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;
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} while ( a < 10.0f ); // no-warning
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}
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void misra_14_2() {
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for (dostuff();a<10;a++) {} // 14.2
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for (;i++<10;) {} // 14.2
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for (;i<10;dostuff()) {} // TODO
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// TODO check more variants
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}
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struct {
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unsigned int x:1;
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unsigned int y:1;
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} r14_4_struct;
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void misra_14_4(bool b) {
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if (x+4){} // 14.4
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else {}
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if (b) {}
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else {}
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if (r14_4_struct.x) {}
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}
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void misra_15_1() {
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goto a1; // 15.1
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a1:
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}
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void misra_15_2() {
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label:
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goto label; // 15.2 15.1
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}
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void misra_15_3() {
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if (x!=0) {
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goto L1; // 15.3 15.1
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if (y!=0) {
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L1:
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} else {}
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} else {}
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}
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int misra_15_5() {
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if (x!=0) {
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return 1; // 15.5
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} else {}
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return 2;
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}
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void misra_15_6() {
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if (x!=0); // 15.6
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else{}
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#if A>1 // no-warning
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(void)0;
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#endif
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do {} while (x<0); // no-warning
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}
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void misra_15_7() {
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uint32_t var = 0;
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uint32_t var2 = 0;
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if (x!=0){} // no-warning
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if (x!=0){} else if(x==1){} // 15.7
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if (x!=0){} else if(x==1){}else{;} // no-warning
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if (x!=0)
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{
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}
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else
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{
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var = 5u;
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if (var != 5u)
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{
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var2 = 10u;
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} // no-warning
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}
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if (a==2) {} else if (b==4) {} // 15.7
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if (a==2) {} else { if (b==4) {} } // no-warning
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}
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void misra_16_2() {
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switch (x) {
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default:
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break;
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case 1:
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while (y>4) {
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case 2: break; // 16.2
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}
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break;
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}
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}
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void misra_16_3() {
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switch (x) {
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case 1:
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case 2:
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a=1;
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case 3: // 16.3
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a=2;
|
|
// fallthrough
|
|
case 5:
|
|
break;
|
|
case 7:
|
|
a=3;
|
|
[[fallthrough]];
|
|
case 8:
|
|
a=4;
|
|
break;
|
|
case 9:
|
|
if (a==b) {
|
|
break;
|
|
}
|
|
case 10: // 16.3
|
|
return; // 15.5
|
|
case 11:
|
|
{ break; }
|
|
case 12:
|
|
default: break;
|
|
}
|
|
|
|
switch (x) {
|
|
case 1: // comment 1
|
|
{
|
|
a = 1;
|
|
break;
|
|
}
|
|
case 2: // comment 2
|
|
{
|
|
a = 2;
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
switch (x) {
|
|
case 1:
|
|
break;
|
|
default: // 16.5
|
|
x++;
|
|
case 19: // 16.3
|
|
break;
|
|
case 20:
|
|
x + 2;
|
|
x + 3;
|
|
break;
|
|
}
|
|
switch (x) { // 16.6
|
|
default:;
|
|
} // 16.3
|
|
|
|
switch (x) { default:; } // 16.3 16.6
|
|
|
|
switch (x) {
|
|
case 20:
|
|
x + 2;
|
|
x + 3;
|
|
break;
|
|
case 21:
|
|
x + 2;
|
|
x + 3;
|
|
break;
|
|
default:
|
|
;
|
|
} // 16.3
|
|
|
|
switch (x) { // 16.4 16.6
|
|
case 1:
|
|
x++;
|
|
break;
|
|
case 2:
|
|
x++;
|
|
} // 16.3
|
|
}
|
|
|
|
void misra_16_4() {
|
|
switch (x) { // 16.4
|
|
case 1:
|
|
break;
|
|
case 2:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void misra_16_5() {
|
|
switch (x) {
|
|
case 1:
|
|
break;
|
|
default: // 16.5
|
|
break;
|
|
case 2:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void misra_16_6() {
|
|
switch (x) { // 16.6
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (x) {
|
|
case 1: break;
|
|
case 2: break;
|
|
default: break;
|
|
}
|
|
|
|
// No 16 6 in this switch:
|
|
switch (x) {
|
|
case A: return 1; // 15.5
|
|
case B: return 1; // 15.5
|
|
case C: return 1; // 15.5
|
|
default: return 2; // 15.5
|
|
}
|
|
}
|
|
|
|
void misra_16_7() {
|
|
switch (x != 123) { // 16.7
|
|
case 1:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void misra_17_1() {
|
|
va_list(); // 17.1
|
|
va_arg(); // 17.1
|
|
va_start(); // 17.1
|
|
va_end(); // 17.1
|
|
va_copy(); // 17.1
|
|
}
|
|
|
|
void misra_17_2_ok_1(void) { ; }
|
|
void misra_17_2_ok_2(void) {
|
|
misra_17_2_ok_1(); // no-warning
|
|
}
|
|
void misra_17_2_1(void) {
|
|
misra_17_2_ok_1(); // no-warning
|
|
misra_17_2_1(); // 17.2
|
|
misra_17_2_ok_2(); // no-warning
|
|
misra_17_2_1(); // 17.2
|
|
}
|
|
void misra_17_2_2(void) {
|
|
misra_17_2_3(); // 17.2
|
|
}
|
|
void misra_17_2_3(void) {
|
|
misra_17_2_4(); // 17.2
|
|
}
|
|
void misra_17_2_4(void) {
|
|
misra_17_2_2(); // 17.2
|
|
misra_17_2_3(); // 17.2
|
|
}
|
|
|
|
void misra_17_2_5(void) {
|
|
misra_17_2_ok_1(); // no-warning
|
|
misra_17_2_5(); // 17.2
|
|
misra_17_2_1(); // no-warning
|
|
}
|
|
|
|
void misra_17_6(int x[static 20]) {} // 17.6
|
|
|
|
int calculation(int x) { return x + 1; }
|
|
void misra_17_7(void) {
|
|
calculation(123); // 17.7
|
|
}
|
|
|
|
void misra_17_8(int x) {
|
|
x = 3; // 17.8
|
|
}
|
|
|
|
void misra_18_4()
|
|
{
|
|
int b = 42;
|
|
int *bp = &b;
|
|
bp += 1; // 18.4
|
|
bp -= 2; // 18.4
|
|
int *p = bp - 2; // 18.4
|
|
int *ab = &b + 1; // 18.4
|
|
p = bp + p; // 18.4
|
|
bp = 1 + p + 1; // 18.4
|
|
b += 19; // no-warning
|
|
b = b + 9; // no-warning
|
|
}
|
|
|
|
void misra_18_5() {
|
|
int *** p; // 18.5
|
|
}
|
|
|
|
struct {
|
|
uint16_t len;
|
|
struct {
|
|
uint8_t data_1[]; // 18.7
|
|
} nested_1;
|
|
struct named {
|
|
struct {
|
|
uint8_t len_1;
|
|
uint32_t data_2[]; // 18.7
|
|
} nested_2;
|
|
uint8_t data_3[]; // 18.7
|
|
} nested_3;
|
|
} r18_7_struct;
|
|
struct {
|
|
uint16_t len;
|
|
uint8_t data_1[ 19 ];
|
|
uint8_t data_2[ ]; // 18.7
|
|
} r18_7_struct;
|
|
|
|
void misra_18_8(int x) {
|
|
int buf1[10];
|
|
int buf2[sizeof(int)];
|
|
int vla[x]; // 18.8
|
|
static const unsigned char arr18_8_1[] = UNDEFINED_ID;
|
|
}
|
|
|
|
union misra_19_2 { }; // 19.2
|
|
|
|
#include "notfound.h" // 20.1
|
|
|
|
#define int short // 20.4
|
|
#undef X // 20.5
|
|
|
|
#define M_20_7_1(A) (A+1) // 20.7
|
|
#define M_20_7_2(A,B) (1+AB+2) // no warning
|
|
#define M_20_7_3(A) ((A)+A) // 20.7
|
|
|
|
#define STRINGIFY(a) (#a) // 20.7 20.10
|
|
|
|
#else1 // 20.13
|
|
|
|
#ifdef A>1
|
|
# define somethingis 5 // no warning
|
|
# define func_20_13(v) (v) // no warning
|
|
#else
|
|
# definesomethingis 6 // 20.13
|
|
# def fun_2013(v) () // 20.13
|
|
#endif
|
|
|
|
#define _Incompatible 0xdeadbeef // 21.1
|
|
#define __Incompatible 0xdeadbeef // 21.1
|
|
#define __starts_with_lower 0xdeadbeef // 21.1
|
|
#define __MY_HEADER_ // 21.1
|
|
#define _macro_starts_with_lower 1 // no warning
|
|
static int _file_scope_id_21_1 = 42; // no warning
|
|
static int _file_scope_id_21_1_fn() { return 42; } // no warning
|
|
static int __file_scope_id_21_1 = 42; // 21.1
|
|
static int __file_scope_id_21_1_fn() { return 42; } // 21.1
|
|
static int _File_scope_id_21_1 = 42; // 21.1
|
|
static int _File_scope_id_21_1_fn() { return 42; } // 21.1
|
|
int _external_scope_id_21_1 = 42; // 21.1
|
|
int _external_scope_id_21_1_fn() { return 42; } // 21.1
|
|
int __external_scope_id_21_1 = 42; // 21.1
|
|
int __external_scope_id_21_1_fn() { return 42; } // 21.1
|
|
int _External_scope_id_21_1 = 42; // 21.1
|
|
int _External_scope_id_21_1_fn() { return 42; } // 21.1
|
|
int errno = 42; // 21.1 5.5
|
|
int misra_21_1() {
|
|
int _a = 42; // 21.1
|
|
errno = EINVAL; // no warning
|
|
_a ++; // no warning
|
|
_exit(1); // no warning
|
|
return _a; // no warning
|
|
}
|
|
int _misra_21_1_1(); // 21.1
|
|
static int _misra_21_1_2(); // no warning
|
|
#define errno 11 // 21.1
|
|
struct _struct_21_1 { int a; }; // 21.1
|
|
struct _Struct_21_1 { int a; }; // 21.1
|
|
struct __struct_21_1 { int a; }; // 21.1
|
|
typedef struct { int a; } _struct_21_1_t; // 21.1
|
|
typedef struct { int a; } _Struct_21_1_t; // 21.1
|
|
typedef struct { int a; } __struct_21_1_t; // 21.1
|
|
enum _enum_21_1 { ENUM211_1 }; // 21.1
|
|
enum _Enum_21_1 { ENUM211_2 }; // 21.1
|
|
enum __enum_21_1 { ENUM211_3 }; // 21.1
|
|
enum __enum_21_1 { ENUM211_3 }; // 21.1
|
|
typedef enum { ENUM211_4 } _enum_21_1_t; // 21.1
|
|
typedef enum { ENUM211_5 } _Enum_21_1_t; // 21.1
|
|
typedef enum { ENUM211_6 } __enum_21_1_t; // 21.1
|
|
enum enum_21_1_valid_id {
|
|
ENUM211_7,
|
|
_ENUM211_8, // 21.1
|
|
__ENUM211_9, // 21.1
|
|
_eNUM211_10, // 21.1
|
|
enum211_11
|
|
};
|
|
union _union_21_1 { int a; }; // 21.1 19.2
|
|
union _Union_21_1 { int a; }; // 21.1 19.2
|
|
union __union_21_1 { int a; }; // 21.1 19.2
|
|
typedef union { int a; } _union_21_1_t; // 21.1 19.2
|
|
typedef union { int a; } _Union_21_1_t; // 21.1 19.2
|
|
typedef union { int a; } __union_21_1_t; // 21.1 19.2
|
|
|
|
void misra_21_3() {
|
|
p1=malloc(10); // 21.3
|
|
p2=calloc(10); // 21.3
|
|
realloc(10); // 21.3
|
|
free(p1); // 21.3
|
|
}
|
|
|
|
void misra_21_7() {
|
|
(void)atof(str); // 21.7
|
|
(void)atoi(str); // 21.7
|
|
(void)atol(str); // 21.7
|
|
(void)atoll(str); // 21.7
|
|
}
|
|
|
|
void misra_21_8() {
|
|
abort(); // 21.8
|
|
(void)getenv("foo"); // 21.8
|
|
(void)system(""); // 21.8
|
|
exit(-1); // 21.8
|
|
}
|
|
|
|
void misra_21_9() {
|
|
(void)bsearch(key,base,num,size,cmp); // 21.9
|
|
qsort(base,num,size,cmp); // 21.9
|
|
}
|
|
|
|
void misra_21_12() {
|
|
int rc;
|
|
fexcept_t f; // 21.12
|
|
rc = feclearexcept(1); // 21.12
|
|
rc = fegetexceptflag(&f, 1); // 21.12
|
|
rc = feraiseexcept(1); // 21.12
|
|
rc = fesetexceptflag(&f, 1); // 21.12
|
|
rc = fetestexcept(1); // 21.12
|
|
}
|
|
|