Warning: array alphabet initialized with string literal in brackets

Question

In the template function, I currently have the following line:

static const unsigned char alphabet[17] = 
(Uppercase) ? ("0123456789ABCDEF") : ("0123456789abcdef");

Where Uppercaseis the template parameter. Using -pedanticgcc tells me:

warning: array 'alphabet' initialized by parenthesized string literal 
'("0123456789abcdef")'

How to get rid of this message (I want it to alphabetbe on the stack)?

Answer 1

The easiest way to make your code uniquely valid is to use an array reference:

static const char (&alphabet)[17] = 
    (Uppercase) ? ("0123456789ABCDEF") : ("0123456789abcdef");

, . , neverhoodboy, , char, unsigned char.

, unsigned char, :

static const unsigned char uppercase[17] = "0123456789ABCDEF";
static const unsigned char lowercase[17] = "0123456789abcdef";
static const unsigned char (&alphabet)[17] =
    (Uppercase) ? uppercase : lowercase;

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Answer 2

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