On 16/02/16 10:51 +0000, Jonathan Wakely wrote:
Given that there are dozens of those initializers it might be more
readable to do:
static const char none = -1;
const char HEX2DEC[256] = { none, none, none, ..... }
For the avoidance of doubt, this is not an error in C++11.
Narrowing conversions are only erorrs when they appear inside a
braced-init-list. So 'none' is initialized to (char)-1 without error,
then the elements of the HEX2DEC array are initialized from char
values that need no conversion, so also without error.
The original code required -1 to be converted to char inside the
braqced-init-list for HEX2DEC.
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