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 pointers, and …

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?

What does 1L mean? [duplicate] Asked 12 years, 11 months ago Modified 5 years, 3 months ago Viewed 40k times

Dec 4, 2020 · 9 Explanation Performance-wise there is no difference. (long) 1 is a constant expression (because the 1 is directly known) and hence, by the rules of the Java Language Specification (JLS), …

What means 1L serialVersionUID? When could I use this default value 1L? Asked 11 years, 9 months ago Modified 3 years, 7 months ago Viewed 52k times

Dec 3, 2020 · devtools::install_github("psyteachr/msc-data-skills") However, when I try to run that line of code I receive:

Just to add that upper case and lower case of these literal suffixes are equivalent e.g. 1l and 1L both will be treated as long integer but certainly 1L is more readable than 1l.

It appears that when you type in a number in Java, the compiler automatically reads it as an integer, which is why when you type in (long) 6000000000 (not in integer's range) it will complain that

Nov 5, 2020 · Error in loadNamespace (j <- i [ [1L]], c (lib.loc, .libPaths ()), versionCheck = vI [ [j]]) : namespace 'xfun' 0.17 is already loaded, but >= 0.19 is required If you found an error as above you …

Aug 6, 2020 · Although Kouadio has the correct answer, I found it difficult to follow those brief instructions, so I'm making them more detailed here. Quit RStudio. Find the RStudio launch icon, …