$ clang 
R_11_01.c:49:24: error: operand of type 'float' cannot be cast to a pointer type
   fp16 fp4 = ( fp16 ) 1.0e6F; /* Non-compliant  -   float to function pointer */
                       ^~~~~~
1 error generated.
R_11_04.c:27:20: warning: cast to 'uint8_t *' (aka 'unsigned char *') from smaller integer type 'int32_t' (aka 'int') [-Wint-to-pointer-cast]
   uint8_t  *q   = ( uint8_t * ) addr;      /* Non-compliant */
                   ^
1 warning generated.
R_11_06.c:28:19: error: operand of type 'float' cannot be cast to a pointer type
   p = ( void * ) 1024.0f;  /* Non-compliant - undefined              */
                  ^~~~~~~
1 error generated.
R_11_07.c:28:24: error: pointer cannot be cast to type 'float32_t' (aka 'float')
     f = ( float32_t ) p;          /* Non-compliant */
                       ^
R_11_07.c:29:24: error: operand of type 'float32_t' (aka 'float') cannot be cast to a pointer type
     p = ( int16_t * ) f;          /* Non-compliant */
                       ^
2 errors generated.
R_11_09.c:34:13: warning: unused variable 'p3' [-Wunused-variable]
   int32_t *p3 = MY_NULL_3;      /* Compliant     */
            ^
1 warning generated.

$ gcc 
R_11_01.c: In function 'R_11_1':
R_11_01.c:49:4: error: cannot convert to a pointer type
   49 |    fp16 fp4 = ( fp16 ) 1.0e6F; /* Non-compliant  -   float to function pointer */
      |    ^~~~
R_11_01.c:58:9: warning: unused variable 'fp5' [-Wunused-variable]
   58 |    fp16 fp5 = f1;           /* Compliant - exception */
      |         ^~~
R_11_01.c:49:9: warning: unused variable 'fp4' [-Wunused-variable]
   49 |    fp16 fp4 = ( fp16 ) 1.0e6F; /* Non-compliant  -   float to function pointer */
      |         ^~~
R_11_01.c:47:9: warning: unused variable 'fp3' [-Wunused-variable]
   47 |    fp16 fp3 = ( fp16 ) 0x8000; /* Non-compliant  - integer to function pointer */
      |         ^~~
R_11_04.c: In function 'R_11_4':
R_11_04.c:26:20: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
   26 |    int32_t  addr = ( int32_t ) &p;          /* Non-compliant */
      |                    ^
R_11_04.c:27:20: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
   27 |    uint8_t  *q   = ( uint8_t * ) addr;      /* Non-compliant */
      |                    ^
R_11_06.c: In function 'R_11_6':
R_11_06.c:28:4: error: cannot convert to a pointer type
   28 |    p = ( void * ) 1024.0f;  /* Non-compliant - undefined              */
      |    ^
R_11_06.c:30:8: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
   30 |    u = ( uint32_t ) p;      /* Non-compliant - implementation-defined */
      |        ^
R_11_07.c: In function 'R_11_7':
R_11_07.c:28:6: error: pointer value used where a floating-point was expected
   28 |      f = ( float32_t ) p;          /* Non-compliant */
      |      ^
R_11_07.c:29:6: error: cannot convert to a pointer type
   29 |      p = ( int16_t * ) f;          /* Non-compliant */
      |      ^
R_11_09.c: In function 'R_11_9':
R_11_09.c:34:13: warning: unused variable 'p3' [-Wunused-variable]
   34 |    int32_t *p3 = MY_NULL_3;      /* Compliant     */
      |             ^~
In file included from clear_lib.c:10:
clear_lib.c: In function 'g':
clear_lib.c:263:6: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  263 |  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:276:6: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  276 |  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 run it kaizenjapan/misra_c_2012_example /bin/bash