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Use consts in dev::utf8::validate()

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This commit is contained in:
Alex Beregszaszi 2016-08-08 19:12:11 +01:00
parent e8c2e87397
commit c157163441
2 changed files with 7 additions and 7 deletions
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12
libdevcore/UTF8.cpp
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@ -31,19 +31,19 @@ namespace utf8
{
bool validate(std::string input, int &invalidPosition)
bool validate(std::string const& _input, int& _invalidPosition)
{
const int length = input.length();
const int length = _input.length();
bool valid = true;
int i = 0;
for (; i < length; i++)
{
if ((unsigned char)input[i] < 0x80)
if ((unsigned char)_input[i] < 0x80)
continue;
int count = 0;
switch(input[i] & 0xe0) {
switch(_input[i] & 0xe0) {
case 0xc0: count = 1; break;
case 0xe0: count = 2; break;
case 0xf0: count = 3; break;
@ -65,7 +65,7 @@ bool validate(std::string input, int &invalidPosition)
for (int j = 0; j < count; j++)
{
i++;
if ((input[i] & 0xc0) != 0x80)
if ((_input[i] & 0xc0) != 0x80)
{
valid = false;
break;
@ -76,7 +76,7 @@ bool validate(std::string input, int &invalidPosition)
if (valid)
return true;
invalidPosition = i;
_invalidPosition = i;
return false;
}

2
libdevcore/UTF8.h
View File

@ -33,7 +33,7 @@ namespace utf8
/// Validate an input for UTF8 encoding
/// @returns true if it is invalid and the first invalid position in invalidPosition
bool validate(std::string input, int &invalidPosition);
bool validate(std::string const& _input, int& _invalidPosition);
}