PubSubClient: Add failure test into readByte() #988
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_client->read() returns a signed int which can fail if the underlying stream is implemented as such.
e.g. TinyGsmTCP::read() is implemented to return a -1 on failure
int read() override {
uint8_t c;
if (read(&c, 1) == 1) { return c; }
return -1;
}
Signed-off-by: Alex J Lennon <[email protected]>
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_client->read() returns a signed int which can fail if the underlying stream is implemented as such.
e.g. TinyGsmTCP::read() is implemented to return a -1 on failure
int read() override {
uint8_t c;
if (read(&c, 1) == 1) { return c; }
return -1;
}
Signed-off-by: Alex J Lennon [email protected]