Compiler Error C2134
Visual Studio 2015
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The latest version of this topic can be found at Compiler Error C2134.
function' : call does not result in a constant expression
A function declared as constexpr can only call other functions declared as constexpr.
The following sample generates C2134:
// C2134.cpp
// compile with: /c
int A() {
return 42;
};
constexpr int B() {
return A(); // Error C2134: 'A': call does not result in a constant expression.
}
Possible resolution:
// C2134b.cpp
constexpr int A() { // add constexpr to A, since it meets the requirements of constexpr.
return 42;
};
constexpr int B() {
return A(); // No error
}
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