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Use correct cast for downcasting reference.

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For downcasting, static_cast<> is the appropriate cast. Using reinterpret_cast<> will NOT correctly adjust the `this` pointer and dereferencing such a value is undefined by spec. See [expr.reinterpret.cast]p7 for the relevant passage. The only legal use of this pointer is in another set of reinterpret_cast expressions that either land it into a numeric value, or back to the original type.
This commit is contained in:
Albert J wong
2016-12-29 23:39:32 -08:00
committed by Ivan Grokhotkov
parent 7b32e6ad37
commit c6c54e710f
1 changed files with 1 additions and 1 deletions
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2
libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.cpp
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@ -63,7 +63,7 @@ public:
bool verify(WiFiClient& client, const char* host) override bool verify(WiFiClient& client, const char* host) override
{ {
auto wcs = reinterpret_cast<WiFiClientSecure&>(client); auto wcs = static_cast<WiFiClientSecure&>(client);
return wcs.verify(_fingerprint.c_str(), host); return wcs.verify(_fingerprint.c_str(), host);
} }