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In the SystemC 2.3.2 review thread Ameya Vikram Singh (@AmeyaVS) reported the following observation: I'll open a separate topic to discuss the details.

Hello All, I want to understand usage of noexcept with SystemC. I read that using noexcept will provide me performance benefits! My doubt is how shall I label a member function noexcept, if it is using a SystemC or a library which throws. Following piece of code is self explanatory and needs assistance on correct usage of noexcept. # ifndef MYNOEXCEPTSCCLASS_H_ # define MYNOEXCEPTSCCLASS_H_ # include <systemc> # include <aLibraryThatThrows> template < typename Tinp , typename Tout > class myNoExceptSCClass : public sc_core::sc_module { private : static Tinp correctVersionForSure() { std::throw "Throwing for fun!" ; } void isThisCorrectVersion1() noexcept { sigOut.write(sigInp.read()); } void isThisCorrectVersion2() { sigOut.write(sigInp.read()); } void isThisCorrectVersion3() noexcept { sigOut.write(aLibraryThatThrows::functionThatThrows()); } void isThisCorrectVersion4() { sigOut.write(aLibraryThatThrows::functionThatThrows()); } public : sc_core::sc_in < Tinp > sigInp ; sc_core::sc_out < Tout > sigOut ; SC_HAS_PROCESS (myNoExceptSCClass) ; explicit myNoExceptSCClass (const sc_core::sc_module_name moduleName_) : sc_core::sc_module (moduleName_) , sigInp ("sigInp") , sigOut ("sigOut") { // Regular Stuffs } ~myNoExceptSCClass() final = default ; myNoExceptSCClass& operator=(const myNoExceptSCClass& other) = delete ; myNoExceptSCClass(const myNoExceptSCClass& other) = delete ; }; # endif Thanks in advance. Regards, Sumit