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What does “^L” mean in C?



2019 Community Moderator ElectionWhat is the difference between #include <filename> and #include “filename”?What is the strict aliasing rule?What does “static” mean in C?What is the effect of extern “C” in C++?What is the difference between const int*, const int * const, and int const *?What does “dereferencing” a pointer mean?What does the C ??!??! operator do?What is “:-!!” in C code?Why does the C preprocessor interpret the word “linux” as the constant “1”?Why does ENOENT mean “No such file or directory”?










20















For example, main in src/hello.c in the GNU Hello package ends like this:



 exit (EXIT_SUCCESS);
 }
 ^L





c







share|improve this question



















  • 4





    It means that the program's done ... to L with it!

    – Hot Licks
    6 hours ago















20















For example, main in src/hello.c in the GNU Hello package ends like this:



 exit (EXIT_SUCCESS);
 }
 ^L





c







share|improve this question



















  • 4





    It means that the program's done ... to L with it!

    – Hot Licks
    6 hours ago













20












20








20


5






For example, main in src/hello.c in the GNU Hello package ends like this:



 exit (EXIT_SUCCESS);
 }
 ^L





c







share|improve this question
















For example, main in src/hello.c in the GNU Hello package ends like this:



 exit (EXIT_SUCCESS);
 }
 ^L





c




c






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 7 hours ago









Peter Mortensen

13.8k1987113




13.8k1987113










asked 22 hours ago









Sean LetendreSean Letendre

4631622




4631622







  • 4





    It means that the program's done ... to L with it!

    – Hot Licks
    6 hours ago












  • 4





    It means that the program's done ... to L with it!

    – Hot Licks
    6 hours ago







4




4





It means that the program's done ... to L with it!

– Hot Licks
6 hours ago





It means that the program's done ... to L with it!

– Hot Licks
6 hours ago












1 Answer
1






active

oldest

votes


















38














Literally, it's a page break ("form feed") character. The compiler treats it as ordinary whitespace. But it's very useful for printing source code - it starts a new page (for example, use ^L between functions to force each call to get its own page).



In Vim/vi based editors, you can insert such a character within edit mode by typing Ctrl + V followed by Ctrl + L. It will look like ^L in the editor, but it's actually just one character (ASCII value: 12 or 0x0C).






share|improve this answer

























  • "it starts a new page" elaborate on this? What do you mean by a page exactly?

    – FireCubez
    8 hours ago






  • 3





    If you would print the source code on paper, the printer would… start a new page.

    – Hermann
    8 hours ago






  • 5





    Literally this

    – selbie
    8 hours ago






  • 4





    @Croll Obviously that's been a short life. You've never had to deal with hundreds of pages of listing s from a line printer. You'd use it all right.

    – user207421
    6 hours ago






  • 2





    @Croll Well, it's hardly the first time someone's used whitespace to make code format nicely, is it?

    – naomimyselfandi
    6 hours ago










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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









38














Literally, it's a page break ("form feed") character. The compiler treats it as ordinary whitespace. But it's very useful for printing source code - it starts a new page (for example, use ^L between functions to force each call to get its own page).



In Vim/vi based editors, you can insert such a character within edit mode by typing Ctrl + V followed by Ctrl + L. It will look like ^L in the editor, but it's actually just one character (ASCII value: 12 or 0x0C).






share|improve this answer

























  • "it starts a new page" elaborate on this? What do you mean by a page exactly?

    – FireCubez
    8 hours ago






  • 3





    If you would print the source code on paper, the printer would… start a new page.

    – Hermann
    8 hours ago






  • 5





    Literally this

    – selbie
    8 hours ago






  • 4





    @Croll Obviously that's been a short life. You've never had to deal with hundreds of pages of listing s from a line printer. You'd use it all right.

    – user207421
    6 hours ago






  • 2





    @Croll Well, it's hardly the first time someone's used whitespace to make code format nicely, is it?

    – naomimyselfandi
    6 hours ago















38














Literally, it's a page break ("form feed") character. The compiler treats it as ordinary whitespace. But it's very useful for printing source code - it starts a new page (for example, use ^L between functions to force each call to get its own page).



In Vim/vi based editors, you can insert such a character within edit mode by typing Ctrl + V followed by Ctrl + L. It will look like ^L in the editor, but it's actually just one character (ASCII value: 12 or 0x0C).






share|improve this answer

























  • "it starts a new page" elaborate on this? What do you mean by a page exactly?

    – FireCubez
    8 hours ago






  • 3





    If you would print the source code on paper, the printer would… start a new page.

    – Hermann
    8 hours ago






  • 5





    Literally this

    – selbie
    8 hours ago






  • 4





    @Croll Obviously that's been a short life. You've never had to deal with hundreds of pages of listing s from a line printer. You'd use it all right.

    – user207421
    6 hours ago






  • 2





    @Croll Well, it's hardly the first time someone's used whitespace to make code format nicely, is it?

    – naomimyselfandi
    6 hours ago













38












38








38







Literally, it's a page break ("form feed") character. The compiler treats it as ordinary whitespace. But it's very useful for printing source code - it starts a new page (for example, use ^L between functions to force each call to get its own page).



In Vim/vi based editors, you can insert such a character within edit mode by typing Ctrl + V followed by Ctrl + L. It will look like ^L in the editor, but it's actually just one character (ASCII value: 12 or 0x0C).






share|improve this answer















Literally, it's a page break ("form feed") character. The compiler treats it as ordinary whitespace. But it's very useful for printing source code - it starts a new page (for example, use ^L between functions to force each call to get its own page).



In Vim/vi based editors, you can insert such a character within edit mode by typing Ctrl + V followed by Ctrl + L. It will look like ^L in the editor, but it's actually just one character (ASCII value: 12 or 0x0C).







share|improve this answer














share|improve this answer



share|improve this answer








edited 7 hours ago









Peter Mortensen

13.8k1987113




13.8k1987113










answered 22 hours ago









selbieselbie

56.3k1063124




56.3k1063124












  • "it starts a new page" elaborate on this? What do you mean by a page exactly?

    – FireCubez
    8 hours ago






  • 3





    If you would print the source code on paper, the printer would… start a new page.

    – Hermann
    8 hours ago






  • 5





    Literally this

    – selbie
    8 hours ago






  • 4





    @Croll Obviously that's been a short life. You've never had to deal with hundreds of pages of listing s from a line printer. You'd use it all right.

    – user207421
    6 hours ago






  • 2





    @Croll Well, it's hardly the first time someone's used whitespace to make code format nicely, is it?

    – naomimyselfandi
    6 hours ago

















  • "it starts a new page" elaborate on this? What do you mean by a page exactly?

    – FireCubez
    8 hours ago






  • 3





    If you would print the source code on paper, the printer would… start a new page.

    – Hermann
    8 hours ago






  • 5





    Literally this

    – selbie
    8 hours ago






  • 4





    @Croll Obviously that's been a short life. You've never had to deal with hundreds of pages of listing s from a line printer. You'd use it all right.

    – user207421
    6 hours ago






  • 2





    @Croll Well, it's hardly the first time someone's used whitespace to make code format nicely, is it?

    – naomimyselfandi
    6 hours ago
















"it starts a new page" elaborate on this? What do you mean by a page exactly?

– FireCubez
8 hours ago





"it starts a new page" elaborate on this? What do you mean by a page exactly?

– FireCubez
8 hours ago




3




3





If you would print the source code on paper, the printer would… start a new page.

– Hermann
8 hours ago





If you would print the source code on paper, the printer would… start a new page.

– Hermann
8 hours ago




5




5





Literally this

– selbie
8 hours ago





Literally this

– selbie
8 hours ago




4




4





@Croll Obviously that's been a short life. You've never had to deal with hundreds of pages of listing s from a line printer. You'd use it all right.

– user207421
6 hours ago





@Croll Obviously that's been a short life. You've never had to deal with hundreds of pages of listing s from a line printer. You'd use it all right.

– user207421
6 hours ago




2




2





@Croll Well, it's hardly the first time someone's used whitespace to make code format nicely, is it?

– naomimyselfandi
6 hours ago





@Croll Well, it's hardly the first time someone's used whitespace to make code format nicely, is it?

– naomimyselfandi
6 hours ago



















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