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Change kInverse array type from char to signed char #30

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Change kInverse array type from char to signed char #30

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2 changes: 1 addition & 1 deletion webcc/base64.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,7 @@ static const char kAlphabet[] =
"0123456789+/";

// kInverse['z'] -> 51 which is the index of 'z' in kAlphabet.
static const char kInverse[] = {
static const signed char kInverse[] = {
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 0-15
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 16-31
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, // 32-47
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