This error is present in both the larger example box (below "Listing 9-17 illustrates how to assign a generic lambda into a variable and then use the lambda in two different template instantiations.") and also in the smaller example box (just below "Without a generic lambda, you’d have to declare the parameter types explicitly, like the following:").
PS: The font you're using makes it very hard to distinguish between the number 1 and the letter L in lowercase. For future reference, a font that doesn't suffer from this problem is Deja Vu Sans Mono (see https://en.wikipedia.org/wiki/DejaVu_fonts#Sans_Mono).
This may have contributed to people not spotting the error until now. It looks too much like a valid number.
This error is present in both the larger example box (below "Listing 9-17 illustrates how to assign a generic lambda into a variable and then use the lambda in two different template instantiations.") and also in the smaller example box (just below "Without a generic lambda, you’d have to declare the parameter types explicitly, like the following:").
PS: The font you're using makes it very hard to distinguish between the number 1 and the letter L in lowercase. For future reference, a font that doesn't suffer from this problem is Deja Vu Sans Mono (see https://en.wikipedia.org/wiki/DejaVu_fonts#Sans_Mono).
This may have contributed to people not spotting the error until now. It looks too much like a valid number.