[Bug c++/89901] New: carat of build error at wrong letter

[jg at jguk dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89901

            Bug ID: 89901
           Summary: carat of build error at wrong letter
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jg at jguk dot org
  Target Milestone: ---

Could g++ indicate the carat on returned var?

C++ Godbolt trunk actual:
   10 |     const char **a = f();
      |                      ~^~

C++ Expected:
   10 |     const char **a = f();
      |     ~^~




#1 with x86-64 gcc (trunk)
<source>: In function 'int main()':

<source>:10:23: error: invalid conversion from 'char**' to 'const char**'
[-fpermissive]

   10 |     const char **a = f();

      |                      ~^~

      |                       |

      |                       char**

Compiler returned: 1


As "C"


#1 with x86-64 gcc (trunk)
<source>: In function 'main':

<source>:10:22: warning: initialization of 'const char **' from incompatible
pointer type 'char **' [-Wincompatible-pointer-types]
   10 |     const char **a = f();
      |                      ^

Compiler returned: 0




#include <stdlib.h>
char ** f()
{
    char ** a = (char**)malloc(sizeof(char*) *4);
    return a;
}

int main()
{
    const char **a = f();   // Take off the "const" to stop the error
}