“lvalue required as left operand of assignment ” error

Question

The following code produces a \"lvalue required as left operand of assignment\"

if( c >= \'A\' && c <= \'Z\'  || c = \" \" || c = \",\") {
         


        

Answer 1

You should use single quotes for chars and do double equals for equality (otherwise it changes the value of c)

if( c >= 'A' && c <= 'Z'  || c == ' ' || c == ',') {

Furthermore, you might consider something like this to make your boolean logic more clear:

if( (c >= 'A' && c <= 'Z')  || c == ' ' || c == ',') {

Although your boolean logic structure works equivalently (&& takes precedence over ||), things like this might trip you up in the future.