Will libqrencode support arm64 ? about libqrencode HOT 5 OPEN

I have tried to compile libqrencode on arm64 and got two compilation warnings "Implicit conversion loses integer precision 'unsigned long' to int". They are from qrencode.c under the functions QRcode_encodeString8bit and QRcode_encodeString8bitStructured. In both cases, the problematic code is:

ret = QRinput_append(input, QR_MODE_8, strlen(string), (unsigned char *)string);

The problem is strlen() is returning "unsigned long" under arm64 and QRinput_append accepts "int" instead, causing a truncation of value.

Hope it helps.

from libqrencode.

While I want to support arm64 platform, I have no machines to test it. I'd like to ask you to test the latest libqrencode on arm64 and let us know if you found any issues.

from libqrencode.

The other issues are in split.c where there were many pointer arithmetics and the results are stored in int - again truncation would occur when as pointers are changed to 8 bytes in arm64

from libqrencode.

@billykan if you know ahead of time that you're dealign with small values, you can silence that warning by typecasting to uint32_t:

ret = QRinput_append(input, QR_MODE_8, (uint32_t)strlen(string), (unsigned char *)string);

I feel your pain though.

from libqrencode.

Thank you @billykan and @ArtSabintsev for your reports. I'll fix this issue in the development branch.

from libqrencode.