ABakhsh5464 发表于 2022-7-22 21:50:17

Expected unqualified-id before 'if' Code Answer's

Expected unqualified-id before 'if' Code Answer's
Expected an ID to be given for the if condition before the statement that follows. If a block is not provided (with { ... }), an ID must be provided even if there is only one statement in the block.

Error: expected unqualified-id before return in c++
Just for the sake of people who landed here for the same reason I did

Don’t use reserved keywords
I named a function in my class definition delete(), which is a reserved keyword and should not be used as a function name. Renaming it to deletion() (which also made sense semantically in my case) resolved the issue.


expected unqualified-id before 'if'

void loop(){if(distanceCm < 21){
digitalWrite(13, HIGH);
}
else{
digitalWrite(13, LOW);
}
}

乔微博 发表于 2022-7-22 21:50:18

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馥琳 发表于 2022-7-22 21:50:23

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顺势而为47 发表于 2022-7-22 22:02:53

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馥琳 发表于 2022-7-22 22:08:17

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