Use proper C++ math functions

src/Delay.cpp

@@ -68,7 +68,7 @@ struct Delay : Module {
 
 		if (outBuffer.empty()) {
 			double ratio = 1.f;
-			if (std::abs(consume) >= 16.f) {
+			if (std::fabs(consume) >= 16.f) {
 				ratio = std::pow(10.f, clamp(consume / 10000.f, -1.f, 1.f));
 			}
 

src/LFO.cpp

@@ -11,8 +11,8 @@ struct LowFrequencyOscillator {
 
 	LowFrequencyOscillator() {}
 	void setPitch(float pitch) {
-		pitch = fminf(pitch, 10.f);
-		freq = powf(2.f, pitch);
+		pitch = std::fmin(pitch, 10.f);
+		freq = std::pow(2.f, pitch);
 	}
 	void setPulseWidth(float pw_) {
 		const float pwMin = 0.01f;
@@ -24,7 +24,7 @@ struct LowFrequencyOscillator {
 		}
 	}
 	void step(float dt) {
-		float deltaPhase = fminf(freq * dt, 0.5f);
+		float deltaPhase = std::fmin(freq * dt, 0.5f);
 		phase += deltaPhase;
 		if (phase >= 1.f)
 			phase -= 1.f;
@@ -36,7 +36,7 @@ struct LowFrequencyOscillator {
 			return std::sin(2*M_PI * phase) * (invert ? -1.f : 1.f);
 	}
 	float tri(float x) {
-		return 4.f * std::abs(x - std::round(x));
+		return 4.f * std::fabs(x - std::round(x));
 	}
 	float tri() {
 		if (offset)

src/Scope.cpp

@@ -157,8 +157,8 @@ struct ScopeDisplay : TransparentWidget {
 			for (int i = 0; i < BUFFER_SIZE; i++) {
 				float v = values[i];
 				vrms += v*v;
-				vmax = std::max(vmax, v);
-				vmin = std::min(vmin, v);
+				vmax = std::fmax(vmax, v);
+				vmin = std::fmin(vmin, v);
 			}
 			vrms = std::sqrt(vrms / BUFFER_SIZE);
 			vpp = vmax - vmin;
@@ -260,8 +260,8 @@ struct ScopeDisplay : TransparentWidget {
 		if (!module)
 			return;
 
-		float gainX = powf(2.0f, roundf(module->params[Scope::X_SCALE_PARAM].value));
-		float gainY = powf(2.0f, roundf(module->params[Scope::Y_SCALE_PARAM].value));
+		float gainX = std::pow(2.0f, std::round(module->params[Scope::X_SCALE_PARAM].value));
+		float gainY = std::pow(2.0f, std::round(module->params[Scope::Y_SCALE_PARAM].value));
 		float offsetX = module->params[Scope::X_POS_PARAM].value;
 		float offsetY = module->params[Scope::Y_POS_PARAM].value;