In Butterworth.cpp , in this piece of code (line 201):
// correct the overall gain
if(filter == kLoPass || filter == kBandPass){ // pre-blt is okay for S-plane
ba[0] = preBLTgain * (preBLTgain / gain); // 2nd term is how much BLT boosts,
}
else if(filter == kHiPass || kBandStop){ // HF gain != DC gain
ba[0] = 1 / ba[0];
}
My compiler complains about the line: else if(filter == kHiPass || kBandStop){ // HF gain != DC gain
error: converting the enum constant to a boolean [-Werror,-Wint-in-bool-context]
else if(filter == kHiPass || kBandStop){ // HF gain != DC gain
I am using: icpx -Wall -Wextra -pedantic -Werror -Wno-unused-parameter
Thank you for filing the issue ... what version of C++ compiler are you using, on what platform? This code is a bit old and so, it may need a PR to update it to modern compilers. Looking fwd>> to your response.
In
Butterworth.cpp
, in this piece of code (line 201):My compiler complains about the line:
else if(filter == kHiPass || kBandStop){ // HF gain != DC gain
I am using:
icpx -Wall -Wextra -pedantic -Werror -Wno-unused-parameter