Simplified an analogous piece of C++ and Rust code.

cpp/QrCode.cpp

@@ -81,10 +81,9 @@ QrCode QrCode::encodeSegments(const vector<QrSegment> &segs, const Ecc &ecl,
 	
 	// Increase the error correction level while the data still fits in the current version number
 	const Ecc *newEcl = &ecl;
-	if (boostEcl) {
-		if (dataUsedBits <= getNumDataCodewords(version, Ecc::MEDIUM  ) * 8)  newEcl = &Ecc::MEDIUM  ;
-		if (dataUsedBits <= getNumDataCodewords(version, Ecc::QUARTILE) * 8)  newEcl = &Ecc::QUARTILE;
-		if (dataUsedBits <= getNumDataCodewords(version, Ecc::HIGH    ) * 8)  newEcl = &Ecc::HIGH    ;
+	for (const Ecc *anEcl : vector<const Ecc*>{&Ecc::MEDIUM, &Ecc::QUARTILE, &Ecc::HIGH}) {
+		if (boostEcl && dataUsedBits <= getNumDataCodewords(version, *anEcl) * 8)
+			newEcl = anEcl;
 	}
 	
 	// Create the data bit string by concatenating all segments

rust/src/lib.rs

@@ -92,10 +92,10 @@ impl QrCode {
 		}
 		
 		// Increase the error correction level while the data still fits in the current version number
-		if boostecl {
-			if datausedbits <= QrCode::get_num_data_codewords(version, &QrCodeEcc_MEDIUM  ) * 8 { ecl = &QrCodeEcc_MEDIUM  ; }
-			if datausedbits <= QrCode::get_num_data_codewords(version, &QrCodeEcc_QUARTILE) * 8 { ecl = &QrCodeEcc_QUARTILE; }
-			if datausedbits <= QrCode::get_num_data_codewords(version, &QrCodeEcc_HIGH    ) * 8 { ecl = &QrCodeEcc_HIGH    ; }
+		for newecl in &[&QrCodeEcc_MEDIUM, &QrCodeEcc_QUARTILE, &QrCodeEcc_HIGH] {
+			if boostecl && datausedbits <= QrCode::get_num_data_codewords(version, newecl) * 8 {
+				ecl = newecl;
+			}
 		}
 		
 		// Create the data bit string by concatenating all segments