docs.xsharp.it

User Tools

Site Tools

Trace: • delegates • vogui_with_winform • ads_linux • quickstart_xsharp_vo • winforms • xsharp_story • gchandle • vulcan_to_xsharp • read_file_stream • com_module_sample
literals

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
literals [2018/02/10 14:52] – wolfgangriedmannliterals [2018/08/20 04:05] (current) – wolfgangriedmann
Line 4: Line 4:
  
 A string literal is delimited with the double quotation mark ''"''.  A string literal is delimited with the double quotation mark ''"''. 
-<code>"This is a string"</code>+<code visualfoxpro>"This is a string"</code>
 Please note that in the VO dialect a string can also be delimited with the quotation mark '' ' ''. Please note that in the VO dialect a string can also be delimited with the quotation mark '' ' ''.
-<code>'This is a string' // valid only in the VO dialect, not in Core or Vulcan</code>+<code visualfoxpro>'This is a string' // valid only in the VO dialect, not in Core or Vulcan</code>
 If you need to specify special characters or single quotation marks in a string, you need an ''escaped'' string, prefixed with ''e'': If you need to specify special characters or single quotation marks in a string, you need an ''escaped'' string, prefixed with ''e'':
-<code>e"This is an escaped string with a new line \nand a double \" quotation mark"</code>+<code visualfoxpro>e"This is an escaped string with a new line \nand a double \" quotation mark"</code>
 There are also interpolated strings that can contain variables: There are also interpolated strings that can contain variables:
-<code>local cValue := "guys" as string+<code visualfoxpro>local cValue := "guys" as string
 Console.WriteLine( i"Hi {cValue}" ) // Hi guys</code> Console.WriteLine( i"Hi {cValue}" ) // Hi guys</code>
 +
 +Since in the VO dialect a string can also be defined with single quotation marks, there is no possibility for the compiler to see a difference between a single character string and a char. Therefore you should prefix a char literal with a ''c'' like this:
 +<code visualfoxpro>cChar := c'\r'</code>
  
 For more details please see [[strings|Strings and their prefixes]] and [[string_char_byte|String, Char and Byte]] For more details please see [[strings|Strings and their prefixes]] and [[string_char_byte|String, Char and Byte]]
Line 20: Line 23:
 If you need to specify what type a numeric literal should take, use suffixes: If you need to specify what type a numeric literal should take, use suffixes:
   * ''d'' for **D**ouble   * ''d'' for **D**ouble
-  * ''s'' for **S**single+  * ''s'' for **S**ingle
   * ''m'' for Deci**m**al   * ''m'' for Deci**m**al
   * ''b'' for **B**inary   * ''b'' for **B**inary
 You can also use a prefix of ''0x'' to specify a hexadecimal value. You can also use a prefix of ''0x'' to specify a hexadecimal value.
 Sample code: Sample code:
-<code>Console.WriteLine( "123.45  is a " + (123.45 ):GetType():Name )      // Double+<code visualfoxpro>Console.WriteLine( "123.45  is a " + (123.45 ):GetType():Name )      // Double
 Console.WriteLine( "123     is a " + ( 123 ):GetType():Name )              // Int32 Console.WriteLine( "123     is a " + ( 123 ):GetType():Name )              // Int32
 Console.WriteLine( "10000000000 is a " + ( 10000000000 ):GetType():Name )  // Int64 Console.WriteLine( "10000000000 is a " + ( 10000000000 ):GetType():Name )  // Int64
literals.1518274352.txt.gz · Last modified: 2018/02/10 14:52 by wolfgangriedmann