warning: ISO C++ says that these are ambiguous, even though the worst conversion for

[Ferric]

The complete warning message is : warning: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second:
candidate 1: bool QByteRef:perator==(char) const
candidate 2: operator==(int, int) <built-in>

which refers to the following code
:

if (receivedMessage[0] == 0x0a)

if (receivedMessage[0] == 0x0a)

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Is there a better way to write this code to get rid of this warning? Thanks for any help.