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
    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
      1. * Constants
      2. StringException
      3. atoi
      4. atof
      5. toString
      6. tolower
      7. toupper
      8. capitalize
      9. capwords
      10. splitlines
      11. find
      12. rfind
      13. split
      14. join
    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
atoi 
long atoi(char[] s)

This function converts a string of to a long integer.

If s is not convertable (for example if s=="a"), atoi should create a StringException, but it does not!
Note: atoi returns zero or the first part of numbers it could convert.

Example:
try {
  writefln(atoi(cast(char[])"55"));
} catch {
  writefln("Exception with '55'");
}
try {
  writefln(atoi(cast(char[])"55a"));
} catch {
  writefln("Exception with '55a'");
}
try {
  writefln(atoi(cast(char[])"z"));
} catch {
  writefln("Exception with 'z'");
}


Output:
55
55
0


See also:
Try statements, atof, toString
Created using PHP docwiki written by Markus Dangl. Best viewed with Mozilla Firefox.