D Documentation  
[ Home ][ Up ]
  1. Introduction
    1. A simple tutorial
    2. Switching to D
    3. An advanced tutorial
  2. Language Reference
    1. General syntax
    2. Statements
      1. Expression Statements
      2. If statement
      3. While statement
      4. Switch-Statement
      5. Do-While Statement
      6. For statement
      7. Foreach Statement
      8. Try statement
      9. Throw statement
    3. Types
    4. Error Handling
    5. Memory Management
  3. Std. runtime library (Phobos)
    1. std.base64
    2. std.boxer
    3. std.compiler
    4. std.conv
    5. std.ctype
    6. std.date
    7. std.file
    8. std.format
    9. std.gc
    10. std.intrinsic
    11. std.math
    12. std.md5
    13. std.mmfile
    14. std.outbuffer
    15. std.path
    16. std.process
    17. std.random
    18. std.recls
    19. std.regexp
    20. std.socket
    21. std.socketstream
    22. std.stdint
    23. std.stdio
    24. std.stream
    25. std.string
    26. std.system
    27. std.thread
    28. std.uri
    29. std.utf
    30. std.zip
    31. std.zlib
  4. Libraries and Tools
    1. mango
    2. Build
  5. Related Links
  6. About this documentation
Do-While Statement
The do-while-statement has a quite similar functionality to the normal while-statement.

do
{
  statement;
} while ( /* boolean expression */ );


The only difference is that the condition is evaluated after executing the statement inside the brackets. Thus, the statement is executed at least once.

Example:
int i = 1;
do
{
  writefln("Executed the statement with i = %d", i);
} while ( i < 1 );

Output:
Executed the statement with i = 1

Opposed to:
int i = 1;
while ( i < 1 )
{
  writefln("Executed the statement with i = %d", i);
}

Output:


                (Doesn't output anything because i is 1 at the first check!)
              		
            

          

        		
      

    

    

      
        Created using PHP docwiki written by Markus Dangl. Best viewed with Mozilla Firefox.