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Do not shadow member variable codepoint.
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paveljanik committed Nov 16, 2016
1 parent 28876d0 commit a38fcd3
Showing 1 changed file with 21 additions and 21 deletions.
42 changes: 21 additions & 21 deletions lib/univalue_utffilter.h
Expand Up @@ -46,27 +46,27 @@ class JSONUTF8StringFilter
}
}
// Write codepoint directly, possibly collating surrogate pairs
void push_back_u(unsigned int codepoint)
void push_back_u(unsigned int codepoint_)
{
if (state) // Only accept full codepoints in open state
is_valid = false;
if (codepoint >= 0xD800 && codepoint < 0xDC00) { // First half of surrogate pair
if (codepoint_ >= 0xD800 && codepoint_ < 0xDC00) { // First half of surrogate pair
if (surpair) // Two subsequent surrogate pair openers - fail
is_valid = false;
else
surpair = codepoint;
} else if (codepoint >= 0xDC00 && codepoint < 0xE000) { // Second half of surrogate pair
surpair = codepoint_;
} else if (codepoint_ >= 0xDC00 && codepoint_ < 0xE000) { // Second half of surrogate pair
if (surpair) { // Open surrogate pair, expect second half
// Compute code point from UTF-16 surrogate pair
append_codepoint(0x10000 | ((surpair - 0xD800)<<10) | (codepoint - 0xDC00));
append_codepoint(0x10000 | ((surpair - 0xD800)<<10) | (codepoint_ - 0xDC00));
surpair = 0;
} else // Second half doesn't follow a first half - fail
is_valid = false;
} else {
if (surpair) // First half of surrogate pair not followed by second - fail
is_valid = false;
else
append_codepoint(codepoint);
append_codepoint(codepoint_);
}
}
// Check that we're in a state where the string can be ended
Expand Down Expand Up @@ -96,22 +96,22 @@ class JSONUTF8StringFilter
// Two subsequent \u.... may have to be replaced with one actual codepoint.
unsigned int surpair; // First half of open UTF-16 surrogate pair, or 0

void append_codepoint(unsigned int codepoint)
void append_codepoint(unsigned int codepoint_)
{
if (codepoint <= 0x7f)
str.push_back((char)codepoint);
else if (codepoint <= 0x7FF) {
str.push_back((char)(0xC0 | (codepoint >> 6)));
str.push_back((char)(0x80 | (codepoint & 0x3F)));
} else if (codepoint <= 0xFFFF) {
str.push_back((char)(0xE0 | (codepoint >> 12)));
str.push_back((char)(0x80 | ((codepoint >> 6) & 0x3F)));
str.push_back((char)(0x80 | (codepoint & 0x3F)));
} else if (codepoint <= 0x1FFFFF) {
str.push_back((char)(0xF0 | (codepoint >> 18)));
str.push_back((char)(0x80 | ((codepoint >> 12) & 0x3F)));
str.push_back((char)(0x80 | ((codepoint >> 6) & 0x3F)));
str.push_back((char)(0x80 | (codepoint & 0x3F)));
if (codepoint_ <= 0x7f)
str.push_back((char)codepoint_);
else if (codepoint_ <= 0x7FF) {
str.push_back((char)(0xC0 | (codepoint_ >> 6)));
str.push_back((char)(0x80 | (codepoint_ & 0x3F)));
} else if (codepoint_ <= 0xFFFF) {
str.push_back((char)(0xE0 | (codepoint_ >> 12)));
str.push_back((char)(0x80 | ((codepoint_ >> 6) & 0x3F)));
str.push_back((char)(0x80 | (codepoint_ & 0x3F)));
} else if (codepoint_ <= 0x1FFFFF) {
str.push_back((char)(0xF0 | (codepoint_ >> 18)));
str.push_back((char)(0x80 | ((codepoint_ >> 12) & 0x3F)));
str.push_back((char)(0x80 | ((codepoint_ >> 6) & 0x3F)));
str.push_back((char)(0x80 | (codepoint_ & 0x3F)));
}
}
};
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