Simplified C++ code with vector range constructor.

cpp/QrCodeGeneratorDemo.cpp

@@ -26,6 +26,7 @@
 
 #include <cstdint>
 #include <cstdlib>
+#include <cstring>
 #include <iostream>
 #include <string>
 #include <vector>
@@ -124,9 +125,7 @@ static void doSegmentDemo() {
 		QrCode::Ecc::LOW);
 	printQr(qr2);
 	
-	std::vector<uint8_t> bytes;
-	for (const char *temp = golden0; *temp != '\0'; temp++)
-		bytes.push_back(static_cast<uint8_t>(*temp));
+	std::vector<uint8_t> bytes(golden0, golden0 + std::strlen(golden0));
 	const QrCode qr3 = QrCode::encodeSegments(
 		{QrSegment::makeBytes(bytes), QrSegment::makeNumeric(golden1), QrSegment::makeAlphanumeric(golden2)},
 		QrCode::Ecc::LOW);

cpp/QrCodeGeneratorWorker.cpp

@@ -75,9 +75,7 @@ int main() {
 		// Make list of segments
 		std::vector<QrSegment> segs;
 		if (isAscii) {
-			std::vector<char> text;
-			for (std::vector<uint8_t>::iterator it = data.begin(); it != data.end(); ++it)
-				text.push_back((char)*it);
+			std::vector<char> text(data.cbegin(), data.cend());
 			text.push_back('\0');
 			segs = QrSegment::makeSegments(text.data());
 		} else