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Fixes problem with dereferencing the end iterator for empty std::string objects

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Rick Brice
2021-04-17 19:33:46 -07:00
committed by Thomas Krijnen
parent 75040b6ffb
commit 01cfcebb09
1 changed files with 1 additions and 1 deletions
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src/ifcparse/IfcCharacterDecoder.cpp
+1 -1
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@@ -317,7 +317,7 @@ IfcCharacterEncoder::operator std::string() {
// Either 2 or 4 to uses \X2 or \X4 respectively. // Either 2 or 4 to uses \X2 or \X4 respectively.
// Currently hardcoded to 4, but \X2 might be // Currently hardcoded to 4, but \X2 might be
// sufficient for nearly all purposes. // sufficient for nearly all purposes.
const int num_bytes = *std::max_element(str.begin(), str.end()) > 0xffff ? 4 : 2; const int num_bytes = (str.empty() || *std::max_element(str.begin(), str.end())) > 0xffff ? 4 : 2;
const std::string num_bytes_str = std::string(1,num_bytes + 0x30); const std::string num_bytes_str = std::string(1,num_bytes + 0x30);
bool in_extended = false; bool in_extended = false;