Effecient Selection Statements?

Hi there, I was wondering if there is a more efficient way of doing the following without having to re-include parts of the code?

Code:

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        if (num_channels==1){*out1++=0;}
        else if (num_channels==2){*out1++=0; *out2++=0;}
        else if (num_channels==3){*out1++=0; *out2++=0; *out3++=0;}
        else {*out1++=0; *out2++=0; *out3++=0; *out4++=0;}

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This is a simple example but in my code there is a lot of work to be done for each channel which would make the program much smaller if I didn't have to re-include the code each time. Also my program might be extended to 32 channels which would leave lots of extra code lying around in these if statements.

I had a look at using switch statements but this didn't compile as I have some declarations which could potentially be skipped.

Thanks

Switch/case seems fine to me. Note the use of fall-through.

Code:

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    switch ( outchannels ) {
        case 4:
            *out4++=0;
        case 3:
            *out3++=0;
        case 2:
            *out2++=0;
        case 1:
            *out1++=0;
            break;
        default:
            break;
    }

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> Also my program might be extended to 32 channels
Isn't that in the realm of rewriting the code to deal with an array of channels, which would make everything a whole lot simpler than having lots of code to repeat each channel number.