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BigInteger: guard against self-assignment

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Related-to: #404.
Suggested-by: @cosinekitty
This commit is contained in:
Philipp A. Hartmann 2015-08-13 23:07:30 +02:00
parent 3cf7228f46
commit afbc0406f0
1 changed files with 4 additions and 2 deletions
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6
include/rapidjson/internal/biginteger.h
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@ -54,8 +54,10 @@ public:
BigInteger& operator=(const BigInteger &rhs) BigInteger& operator=(const BigInteger &rhs)
{ {
count_ = rhs.count_; if (this != &rhs) {
std::memcpy(digits_, rhs.digits_, count_ * sizeof(Type)); count_ = rhs.count_;
std::memcpy(digits_, rhs.digits_, count_ * sizeof(Type));
}
return *this; return *this;
} }