De-macroize step 1/n: Probably uncontroversial switches from macros to constexpr #221

De-macroize step 1/n: Probably uncontroversial switches from macros to constexpr

Usage Workflow file

10 warnings

'__GNUC__' is not defined as a preprocessor macro, replacing with '0' for '#if/#elif'

'__GNUC__' is not defined as a preprocessor macro, replacing with '0' for '#if/#elif'

'finufftf_plan_s': '4' bytes padding added after data member 'finufftf_plan_s::ntrans'

'finufftf_plan_s': '4' bytes padding added after data member 'finufftf_plan_s::nbatch'

'finufftf_plan_s': '4' bytes padding added after data member 'finufftf_plan_s::fftSign'

'finufftf_plan_s': '7' bytes padding added after data member 'finufftf_plan_s::didSort'

'finufftf_plan_s': '4' bytes padding added after data member 'finufftf_plan_s::t3P'

'crandm11': unreferenced inline function has been removed

'MY_OMP_GET_NUM_THREADS': unreferenced inline function has been removed

'MY_OMP_GET_MAX_THREADS': unreferenced inline function has been removed