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  • Types of integers
  • Different types of integers are available in WLanguage
  • Notes
  • Default value
  • Hexadecimal value
  • Thousand separator
  • Specific features of PHP
  • Differences between WINDEV 5.5 and WINDEV 25
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Types of integers

Different types of integers are available in WLanguage

Value included between
  • Integer
-2 x 109 and 2 x 109 (roughly)
Example:
i is int
i = 5
  • 1-byte integer
-128 and 127 (inclusive)
Example:
i is 1-byte int
AndroidAndroid Widget Universal Windows 10 AppJava This type of variable will be automatically converted into Integer.
Universal Windows 10 App This type of variable will be automatically converted into Integer.
Versions 23 and later
AndroidAndroid Widget Java The 1-byte Integer variables are now available.
New in version 23
AndroidAndroid Widget Java The 1-byte Integer variables are now available.
AndroidAndroid Widget Java The 1-byte Integer variables are now available.
  • 2-byte integer
-32.768 and 32.767 (inclusive)
Example:
I is 2-byte int
AndroidAndroid Widget Universal Windows 10 AppJava This type of variable will be automatically converted into Integer.
Universal Windows 10 App This type of variable will be automatically converted into Integer.
Versions 23 and later
AndroidAndroid Widget Java The 2-byte Integer variables are now available.
New in version 23
AndroidAndroid Widget Java The 2-byte Integer variables are now available.
AndroidAndroid Widget Java The 2-byte Integer variables are now available.
  • 4-byte integer
-2 x 109 and 2 x 109 (roughly)
Example:
i is 4-byte int
  • 8-byte integer
-9 x 1018 and 9 x 1018 (roughly)
Example:
i is 8-byte int
  • Unsigned integer
0 and 4 x 109
Example:
i is unsigned int
AndroidAndroid Widget Universal Windows 10 App This type of variable will be automatically converted into Integer.
  • Versions 16 and later
    Byte
    New in version 16
    Byte
    Byte
0 and 255 (inclusive)
This type is equivalent to the unsigned 1-byte integer.
Example:
i is byte
AndroidAndroid Widget Universal Windows 10 App This type of variable will be automatically converted into Integer.
  • Unsigned 1-byte integer
0 and 255 (inclusive)
Example:
i is unsigned 1-byte int
AndroidAndroid Widget Universal Windows 10 App This type of variable will be automatically converted into Integer.
  • Unsigned 2-byte integer
0 and 65.535 (inclusive)
Example:
i is unsigned 2-byte int
AndroidAndroid Widget Universal Windows 10 App This type of variable will be automatically converted into Integer.
  • Unsigned 4-byte integer
0 and 4 x 109 (about)
Example:
i is unsigned 4-byte int
AndroidAndroid Widget Universal Windows 10 App This type of variable will be automatically converted into Integer.
  • Unsigned 8-byte integer
0 and 18 x 1018
Example:
i is unsigned 8-byte int
AndroidAndroid Widget Universal Windows 10 App This type of variable will be automatically converted into Integer.
  • System integer
automatically adapts to the size supported by the compilation mode (4 bytes for a program compiled in 32 bits, 8 bytes for a program compiled in 64 bits).
Example:
i is system int
Versions 22 and later
WINDEVWEBDEV - Server codeiPhone/iPadApple WatchWindows MobileUniversal Windows 10 App Remark: SystemIntegerToInteger is used to convert a system integer into a 4-byte integer.
New in version 22
WINDEVWEBDEV - Server codeiPhone/iPadApple WatchWindows MobileUniversal Windows 10 App Remark: SystemIntegerToInteger is used to convert a system integer into a 4-byte integer.
WINDEVWEBDEV - Server codeiPhone/iPadApple WatchWindows MobileUniversal Windows 10 App Remark: SystemIntegerToInteger is used to convert a system integer into a 4-byte integer.
The exact values for these different types of integers can be found in the Limits.wl file found in the Personal\External sub-directory of the setup directory of WINDEV, WEBDEV and WINDEV Mobile.
Remark: All the advanced types (different from the "Integer" type) are recommended when using the Windows APIs.
Notes

Default value

An "Integer" variable that is declared but not initialized is equal to 0.

Hexadecimal value

To enter an hexadecimal value in the code, the hexadecimal value must be prefixed by "0x".
MyVariable is int
MyVariable = 0x4D5
Versions 23 and later
Remark: The '_' character can be used as block separator in the hexadecimal numbers. The blocks can have a size equal to 2, 4 or 8 characters long.
Example:
Nb1 is int = 0x_12_15_A4_BC
Nb2 is int = 0x_CD4A_DE58
New in version 23
Remark: The '_' character can be used as block separator in the hexadecimal numbers. The blocks can have a size equal to 2, 4 or 8 characters long.
Example:
Nb1 is int = 0x_12_15_A4_BC
Nb2 is int = 0x_CD4A_DE58
Remark: The '_' character can be used as block separator in the hexadecimal numbers. The blocks can have a size equal to 2, 4 or 8 characters long.
Example:
Nb1 is int = 0x_12_15_A4_BC
Nb2 is int = 0x_CD4A_DE58
Versions 23 and later

Thousand separator

The 'Space' character or the '_' character can be used as thousand separator in the numbers. For example:
num1 is int
num1 = 123 456
let num2 = 246_789
New in version 23

Thousand separator

The 'Space' character or the '_' character can be used as thousand separator in the numbers. For example:
num1 is int
num1 = 123 456
let num2 = 246_789

Thousand separator

The 'Space' character or the '_' character can be used as thousand separator in the numbers. For example:
num1 is int
num1 = 123 456
let num2 = 246_789
PHP

Specific features of PHP

  • Numbers (real, integer, currency, numeric) cannot exceed 14 significant digits in PHP. If they exceed this limit, they are rounded to 14 digits.
  • The integers in 32 bits have for maximum value:
    2147483647 for 32 bits <=> 0x7FFFFFFF
  • The integers in 64 bits have for maximum value:
    9223372036854775807<=>0x7FFFFFFFFFFFFFFF
WINDEVWEBDEV - Server codeReports and QueriesWindowsJavaPHPUser code (UMC)

Differences between WINDEV 5.5 and WINDEV 25

The types of integers have been modified between WINDEV 5.5 and WINDEV 25:
Type of integers in WINDEV 5.5Type of integers in WINDEV 25
Integer2-byte integer
Unsigned integerUnsigned 2-byte integer
Long integer4-byte integer
Short integerUnsigned 1-byte integer
In WINDEV 5.5, the integers were 2-byte integers by default. Since the versions 7.x, the integers are 4-byte integers by default.
Minimum version required
  • Version 9
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