tree 3865d25160efdf7ead7e0f545f8e925b0598bae6
parent fedd8e6c176dea85194693399e50243eb1c117c4
author Behdad Esfahbod <behdad@behdad.org> 1543625832 -0500
committer Behdad Esfahbod <behdad@behdad.org> 1543629374 -0500

Make operator [] take signed int

The built-in operator takes signed int.  So, match it, such that
the built-in is never a better or equally-good match to our operator.
Fixes "ambiguous overload" errors from gcc 4.2 and VS 2008.

See https://github.com/harfbuzz/harfbuzz/issues/1374