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#include <iostream>

struct S {
  int i;
  
  S(int i) : i(i) {}
};

void g(volatile S &s) {
  std::cout << s.i << std::endl;
}

void f() {
  volatile S s(12);
  g(s);
}

Exceptions

EXP35EXP55-CPP-EX1: An exception to this rule is allowed when it is necessary to cast away const when invoking a legacy API that does not accept a const argument, provided the function does not attempt to modify the referenced variable. It is always preferable to modify the API to be const-correct when possible, however. For example, the following code casts away the const qualification of INVFNAME in the call to the audit_log() function.

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Search for vulnerabilities resulting from the violation of this rule on the CERT website.

Related Guidelines

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