Win a copy of Murach's MySQL this week in the JDBC and Relational Databases forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Return 0 in main() function

 
Ranch Hand
Posts: 18944
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
If I use return 0; in main function( and define in as int main() ,of course)then where does the control is transferred after execution of that last line in the code??Isn't it absurd to use return 0 in main()..???
 
Bartender
Posts: 1205
22
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Anonymous wrote:If I use return 0; in main function( and define in as int main() ,of course)then where does the control is transferred after execution of that last line in the code??Isn't it absurd to use return 0 in main()..???



The return value from the main function/method is returned to the operating system. Returning a 0 indicates no errors, by convention. IF I RECALL CORRECTLY, in bash (a Unix shell) the return value of a program is assigned to the $? variable:

myProg arg1 arg2
echo myProg returned $?

DOS/Windows does a similar thing with the %ERRORLEVEL%

myProg
echo myProg returned %ERRORLEVEL%
 
this llama doesn't want your drama, he just wants this tiny ad for his mama
a bit of art, as a gift, the permaculture playing cards
https://gardener-gift.com
reply
    Bookmark Topic Watch Topic
  • New Topic