SEI CERT C Coding Standard

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*locale-specific behavior* \[[ISO/IEC 9899-1999|AA. C References#ISO/IEC 9899-1999]\]
Behavior that depends on local conventions of nationality, culture, and language that each implementation documents.
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<ac:structured-macro ac:name="anchor" ac:schema-version="1" ac:macro-id="a6f5fd90ea2838bb-7e4ad3b9-430542fa-ac34aa7d-886a509c84caf80afc48ba9a"><ac:parameter ac:name=""> lvalue</ac:parameter></ac:structured-macro>
*lvalue* \[[ISO/IEC 9899-1999|AA. C References#ISO/IEC 9899-1999]\]
An lvalue is an expression with an object type or an incomplete type other than {{void}}. The name "lvalue" comes originally from the assignment expression {{E1 = E2}}, in which the left operand {{E1}} is required to be a (modifiable) lvalue. It is perhaps better considered as representing an object "locator value".

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*reentrant* \[[Dowd 06|AA. C References#Dowd 06]\]
A function is reentrant if multiple instances of the same function can run in the same address space concurrently without creating the potential for inconsistent states.
<ac:structured-macro ac:name="anchor" ac:schema-version="1" ac:macro-id="61e83488-0e53-4818-a3fc-620265b02f06"><ac:parameter ac:name=""> rvalue</ac:parameter></ac:structured-macro>
*rvalue* \[[ISO/IEC 9899-1999|AA. C References#ISO/IEC 9899-1999]\]
Value of an expression.

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*undefined behavior* \[[ISO/IEC 9899-1999|AA. C References#ISO/IEC 9899-1999]\]
Behavior, upon use of a nonportable or erroneous program construct or of erroneous data, for which the standard imposes no requirements.  An example of undefined behavior is the behavior on integer overflow.

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