It helps to remember that in C you need to use {} as brackets around a compound initialiser (something which is different from perl, where , has taken on a much greater role).

thaum:/tmp bsmith$ cat >a.c
int a[] = { 1, 2, 3, };
thaum:/tmp bsmith$ gcc -c a.c
thaum:/tmp bsmith$
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--
integral, resident of freenode's #perl