On 10/24/2012 11:24 AM, Don Clugston wrote:
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.
No, the code is fine.
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>
C's precedence rules are the same as in math in this case.