Aug 10, 2011 · I often seen the symbol 1L (or 2L, 3L, etc) appear in R code. Whats the difference between 1L and 1? 1==1L evaluates to TRUE. Why is 1L used in R code?

The 1L has no special meaning. It is just a number that will match 1L as the "other" version id. To my mind, you are better off either using 0L, or a version number that was (at some point) …

The L specifies that the number is a long type, so -1L is a long set to negative one, and 1L is a long set to positive one. As for why ftell doesn't just return NULL, it's because NULL is used for …

Possible Duplicate: What is a serialVersionUID and why should I use it? what is meant by that in a servlet (private static final long serialVersionUID = 1L)?

Dec 4, 2020 · (long) 1 evaluates to the same constant as 1L. However in the first case the number (1) is evaluated as integer whereas 1L is always a long. Therefore (long) 123_123_123_123 is …

Jan 1, 2013 · What does "0L", "1L" mean in C ? How is it different from "0" and "1" ? Is there other literals than "L ...

Jul 31, 2014 · In former example value of expression is 1 as -1L < 1L. In latter case -1L is promoted to unsigned type by repeatedly adding or substracting n+1, when n is the largest …

-1L >>> 1 // ? or (int)-1 >>> 1 // ? So even if the number is in the common range, we need to specify type. If the default changed with magnitude of the literal, then there would be a weird …

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Aug 27, 2017 · 1L<<count wouldn't produce valid results beyond the range of unsigned long long. It can produce invalid results, when shifting yields a negative number. If you want results in the …