On 24/10/12 04:41, bearophile wrote:
I have found a nice paper, "Extending a C-like Language for Portable
SIMD Programming", (2012), by Roland L., Sebastian Hack and Ingo Wald:

http://www.cdl.uni-saarland.de/projects/vecimp/vecimp_tr.pdf


They present a simple scalar program in C:

struct data_t {
     int key;
     int other;
};

int search(data_t* data , int N) {
     for (int i = 0; i < N; i++) {
         int x = data[i].key;
         if (4 < x & x <= 8) return x;
     }
     return -1;
}

I don't know what that code does. I think the if statement is always true. Try compiling it in D.

test.d(8): Error: 4 < x must be parenthesized when next to operator &
test.d(8): Error: x <= 8 must be parenthesized when next to operator &

Making that an error was such a good idea.
<g>

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