char* getenv(const char* kcpEnvVarName);
#include <iostream> #include <cstdlib> int main() { using namespace std; char caEnvVarName[] = "SomeVariableName"; char* cpEnvVarValue = getenv(caEnvVarName); if (cpEnvVarValue == 0) { cout << "Environment variable \"" << caEnvVarName << "\" does not exist." << endl; } else { cout << "Environment variable \"" << caEnvVarName << "\" = " << cpEnvVarValue << endl; } return 0; }
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