MCDecoder: partly revert recent cleanup to reestablish c++17 support

axxel · axxel · commit efffdcfe9a16 · 2025-04-01T22:34:20.000+02:00
std::string_view::starts_with was introduced in c++20 :-/.
diff --git a/core/src/maxicode/MCDecoder.cpp b/core/src/maxicode/MCDecoder.cpp
@@ -276,7 +276,7 @@ DecoderResult Decode(ByteArray&& bytes, const int mode)
 		auto country  = ToString(GetCountry(bytes), 3);
 		auto service  = ToString(GetServiceClass(bytes), 3);
 		GetMessage(bytes, 10, 84, result, sai);
-		result.insert(result.bytes.asString().starts_with("[)>\u001E01\u001D") ? 9 : 0, // "[)>" + RS + "01" + GS
+		result.insert(result.bytes.asString().compare(0, 7, "[)>\u001E01\u001D") == 0 ? 9 : 0, // "[)>" + RS + "01" + GS
 					  postcode + GS + country + GS + service + GS);
 		break;
 	}

Original file line number	Diff line number	Diff line change
`@@ -276,7 +276,7 @@ DecoderResult Decode(ByteArray&& bytes, const int mode)`
`276`	`276`	`auto country = ToString(GetCountry(bytes), 3);`
`277`	`277`	`auto service = ToString(GetServiceClass(bytes), 3);`
`278`	`278`	`GetMessage(bytes, 10, 84, result, sai);`
`279`		`- result.insert(result.bytes.asString().starts_with("[)>\u001E01\u001D") ? 9 : 0, // "[)>" + RS + "01" + GS`
	`279`	`+ result.insert(result.bytes.asString().compare(0, 7, "[)>\u001E01\u001D") == 0 ? 9 : 0, // "[)>" + RS + "01" + GS`
`280`	`280`	`postcode + GS + country + GS + service + GS);`
`281`	`281`	`break;`
`282`	`282`	`}`