Error int b64_encode: control reaches end of non-void function

[nekoFra]

After I included "HttpClient.h" and "b64.h", at build time it returns the following error:

`/Users/francesco/Documents/Arduino/libraries/HttpClient/b64.cpp: In function 'int b64_encode(const unsigned char*, int, unsigned char*, int)':
/Users/francesco/Documents/Arduino/libraries/HttpClient/b64.cpp:69:1: error: control reaches end of non-void function [-Werror=return-type]
69 | }
| ^
cc1plus: some warnings being treated as errors

exit status 1

Compilation error: exit status 1`

[g1llez]

Same here

[bentwonk]

this thread fixes this issue:
https://forum.arduino.cc/t/httpclient-library-example-with-nodemcu/1042659/11

the solution is in adding return ((aInputLen+2)/3)*4; at the end of b64.c so that it looks like:

if (aInputLen % 3 > 0)
{
// It doesn't fit neatly into a 3-byte chunk, so process what's left
b64_encode(&aInput[i3], aInputLen % 3, &aOutput[i4], aOutputLen - (i*4));
}
}
return ((aInputLen+2)/3)*4; // ADDED
}