39 lines
838 B
C++
39 lines
838 B
C++
// { dg-do run }
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extern "C" int printf(const char *, ...);
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class Environment {
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public:
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virtual ~Environment();
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// Static factory method that returns the implementation that provide the
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// appropriate platform-specific instance.
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static Environment* Create();
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// Gets an environment variable's value and stores it in |result|.
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// Returns false if the key is unset.
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virtual bool GetVar(const char* variable_name, char* result) = 0;
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};
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class EnvironmentImpl : public Environment {
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public:
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virtual bool GetVar(const char* variable_name, char* result) {
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return true;
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}
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};
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Environment::~Environment() {}
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// static
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Environment* Environment::Create() {
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return new EnvironmentImpl();
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}
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int main()
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{
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char * null = 0;
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Environment * env = Environment::Create();
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env->GetVar(0, null);
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printf("%p\n", env);
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}
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