fix issue #2

README.md

@@ -53,4 +53,6 @@ sqrt(-x), consistency, ...) in favor of speed. In the future
 this library may add a safe math flag. Do not use this
 library in safety critical mechanisms(encryption, aerospace,
 automotive). This library has undefined behavior(e.g. an
-internal division by 0) and it's not documented.
+internal division by 0) and it's not documented.
+
+C++ 14 compiler required.

amathlib.h

@@ -14205,6 +14205,8 @@ inline Array8Complex32 operator/(const Complex32 &lhs, const Array8Complex32 &rh
 	return ret;
 }
 
+#if defined(AML_USE_STD_COMPLEX)
+
 #if defined(USE_CONCEPTS)
 template<class T>
 concept ComplexNumber = requires(T a, T b, Complex64 v){
@@ -14214,12 +14216,51 @@ concept ComplexNumber = requires(T a, T b, Complex64 v){
 	a.ln();
 	a.set(0, v);
 };
+#endif
+
+
+#if defined(USE_CONCEPTS)
 
 template<ComplexNumber C>
+#else
+template<class C>
+#endif
 inline auto log(C c) { return *c.ln(); }
 
+#if defined(USE_CONCEPTS)
 
+template<ComplexNumber C>
+#else
+template<class C>
 #endif
+inline auto sin(C c) { return *c.sin(); }
+
+#if defined(USE_CONCEPTS)
+
+template<ComplexNumber C>
+#else
+template<class C>
+#endif
+inline auto log10(C c) { return *c.log10(); }
+
+#if defined(USE_CONCEPTS)
+
+template<ComplexNumber C>
+#else
+template<class C>
+#endif
+inline auto tan(C c) { return *c.tan(); }
+
+#if defined(USE_CONCEPTS)
+
+template<ComplexNumber C>
+#else
+template<class C>
+#endif
+inline auto cos(C c) { return *c.cos(); }
+
+
+#endif //std::complex compatibility
 
 
 #endif //MATH_LIB_A_MATH_LIB_H

testComplex.cpp

@@ -257,5 +257,8 @@ int main() {
 	testCaseId++;
 
 
+	std::cout << "test complete" << std::endl;
+
+
 	return 0;
 }