ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Your version: XXA250083N

The content of this page has been updated to version 27.  See documentation 27 now.
Help / WLanguage / WLanguage functions / Standard functions / Functions for managing strings
  • Range for conversion
  • Val function and UNICODE
  • Various
WINDEV
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WEBDEV
WindowsLinuxPHPWEBDEV - Browser code
WINDEV Mobile
AndroidAndroid Widget iPhone/iPadApple WatchUniversal Windows 10 AppWindows Mobile
Others
Stored procedures
Returns the numeric value of a character string. This feature enables you to perform numeric calculations on the character strings.
Example
Val("143")    // Returns 143
Val("1.67")   // Returns 1.67
Val("ABC")    // Returns 0
Val("3plus2") // Returns 3
Val("7,5")    // Returns 7
Val("1D2")    // Returns 100
Val("2.5e-2") // Returns 0.025
Syntax
<Result> = Val(<Source string> [, <Base Used>])
<Result>: Real or integer
  • Numeric value of the string.
  • 0 if an error occurred.
AndroidAndroid Widget Java In this version, <Result> corresponds to a real.
<Source string>: Character string
Character string to convert into a numeric value.
For a real, the separator must be the dot ('.') and the prefixes for scientific notation can be 'E', 'e', 'D' or 'd'. If the separator is a comma, the numbers found after the comma will be ignored.
<Base Used>: Character string or integer (optional)
Base in which the number is represented. The possible values are as follows:
  • "d": base 10 (decimal)
  • "x": base 16 (hexadecimal)
  • "o": base 8 (octal)
  • an integer included between 2 and 36
Base 10 is used by default.
WEBDEV - Browser codeUniversal Windows 10 App This parameter is not available. Base 10 is automatically used.
Remarks

Range for conversion

Val converts a string into an integer if the value is found between -9.223.372.036.854.775.808 and 9.223.372.036.854.775.807.

Val function and UNICODE

<Source String> can be in ANSI format or in UNICODE format.
See Managing the UNICODE format for more details.

Various

As soon as a character of <Source String> cannot constitute a number, Val stops interpreting <Source String> and returns the number corresponding to the characters already read
The reals can be converted from base 10 only. In the other bases, the characters found after the "." character (dot) will be ignored.
Related Examples:
The Val function Unit examples (WINDEV): The Val function
[ + ] Using the WLanguage "Val" function with different databases.
For example, it allows you to retrieve the decimal value of a string in Hexadecimal format.
Component : wd250vm.dll
Minimum version required
  • Version 9
This page is also available for…
Comments
Click [Add] to post a comment

Last update: 04/29/2020

Send a report | Local help