Wiki Markup const}}\-qualified. Enforcing object immutability using {{const}}\-qualification helps ensure the correctness and security of applications. ISO/IEC TR 24772, for example, recommends labeling parameters as constant to avoid the unintentional modification of function arguments \[ [ISO/IEC TR 24772|AA. Bibliography#ISO/ISO/IEC DTR 24772]\]. See recommendation [STR05-C. Use pointers to const when referring to string literals] describes a specialized case of this recommendation.
Adding const qualification may propagate through a program; as you add const, qualifiers still more become necessary. This phenomenon is sometimes called const poisoning, which can frequently lead to violations of recommendation EXP05-C. Do not cast away a const qualification. While const qualification is a good idea, the costs may outweigh the value in the remediation of existing code.
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ISO/IEC 9899:1999 Section 6.7.3, "Type qualifiers"
Bibliography
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\[[Dewhurst 2002|AA. Bibliography#Dewhurst 02]\] Gotcha #25, "#define Literals"
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[Saks 2000|AA. Bibliography#Saks 00]\]
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02. Declarations and Initialization (DCL) 02. Declarations and Initialization (DCL)