This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Warning 167(-D) on const type * versus type *

Peter Goderie over 13 years ago

I have a sourcecode like:

typedef int tQ32_16;
typedef tQ32_16 tVector3[3];

tQ32_16 Length_V3(const tVector3 * vec) {....;}

void anyfunc(void)
{

tVector3 v1 = {1,2,3}; tQ32_16 l1;

l1 = Length_V3(&v1); //==>> warning: #167-D: argument of type "tVector3 *" is incompatible with parameter of type "const tVector3 *"

....
}

Why do I get this warning ??
As far as I know this is correct C-code....

Parents

0 John Linq over 13 years ago in reply to Mike Kleshov

Mike, Thanks.

Sorry for my very limited C skill. Just want to know if my understanding is correct or not.

#include <stdio.h>

int Length_V3( int vec[][3] )
{
    int result = vec[0][0];

    return result;
}

int main(void)
{
    int v1[1][3] = { { 0xA, 0xB, 0xC } };
    int l1;

    l1 = Length_V3(&v1[0]);
    printf( "l1 = %X", l1 );

    return 0;
}

Tested with X86/WinXP/Code::Blocks 10.05

Compiling: C:\WINDOWS\Temp\main_b.c
Linking console executable: C:\WINDOWS\Temp\main_b.exe
Process terminated with status 0 (0 minutes, 0 seconds)
0 errors, 0 warnings

l1 = A
Process returned 0 (0x0)   execution time : 0.016 s
Press any key to continue.

Reply

0 John Linq over 13 years ago in reply to Mike Kleshov

Mike, Thanks.

Sorry for my very limited C skill. Just want to know if my understanding is correct or not.

#include <stdio.h>

int Length_V3( int vec[][3] )
{
    int result = vec[0][0];

    return result;
}

int main(void)
{
    int v1[1][3] = { { 0xA, 0xB, 0xC } };
    int l1;

    l1 = Length_V3(&v1[0]);
    printf( "l1 = %X", l1 );

    return 0;
}

Tested with X86/WinXP/Code::Blocks 10.05

Compiling: C:\WINDOWS\Temp\main_b.c
Linking console executable: C:\WINDOWS\Temp\main_b.exe
Process terminated with status 0 (0 minutes, 0 seconds)
0 errors, 0 warnings

l1 = A
Process returned 0 (0x0)   execution time : 0.016 s
Press any key to continue.

Children

No data