parseNumber: Difference between revisions

From Bohemia Interactive Community
Jump to navigation Jump to search
m (Add C++ info to link name)
(Added more details about parsing hex numbers)
 
(3 intermediate revisions by one other user not shown)
Line 19: Line 19:


|descr= Parses the string, interpreting its content as a floating point number.
|descr= Parses the string, interpreting its content as a floating point number.
{{Feature|important|This command does '''not''' work with strings representing hexadecimal numbers (e.g {{hl|"0xCF"}}).}}
{{Feature|important|This command does '''not''' work with strings representing hexadecimal numbers (e.g {{hl|"0xCF"}}).
<sqf>
parseNumber "512 + 0x2F"; // 512, WRONG!
"512 + 0x2F" call BIS_fnc_parseNumber // 559, CORRECT!
</sqf>}}
{{Feature|informative|Starting whitespaces are discarded, then as many valid characters are used to be interpreted as a number until an invalid character is found then the rest of the string is ignored.}}
{{Feature|informative|Starting whitespaces are discarded, then as many valid characters are used to be interpreted as a number until an invalid character is found then the rest of the string is ignored.}}


|s1= [[parseNumber]] value
|s1= [[parseNumber]] value


|p1= value: [[String]] or {{GVI|arma3|1.50|size=0.75}} [[Boolean]]
|p1= value: [[String]] or {{GVI|arma3|1.50|size= 0.75}} [[Boolean]]


|r1= [[Number]] - the parsed number, {{hl|0}} if no valid number was found; in the case of a passed [[Boolean]], 0 if [[false]], 1 if [[true]]
|r1= [[Number]] - the parsed number, {{hl|0}} if no valid number was found; in the case of a passed [[Boolean]], 0 if [[false]], 1 if [[true]]
Line 31: Line 35:
_number = parseNumber "0.125"; // 0.125
_number = parseNumber "0.125"; // 0.125
_number = parseNumber "0050"; // 50
_number = parseNumber "0050"; // 50
_number = parseNumber "   42 yes"; // 42
_number = parseNumber " 42 yes"; // 42
_number = parseNumber "3 or 4"; // 3
_number = parseNumber "3 or 4"; // 3
_number = parseNumber "either 3 or 4"; // 0
_number = parseNumber "either 3 or 4"; // 0
Line 39: Line 43:
|x2= since {{arma3}} v1.50:
|x2= since {{arma3}} v1.50:
<sqf>
<sqf>
private _result = parseNumber false; // 0
_result = parseNumber false; // 0
private _result = parseNumber true; // 1
_result = parseNumber true; // 1
private _zeroOneStatus = parseNumber alive player; // 0 if the player is dead, 1 if alive
_zeroOneStatus = parseNumber alive player; // 0 if the player is dead, 1 if alive
</sqf>
</sqf>


|seealso= [[BIS_fnc_parseNumber]] [http://www.cplusplus.com/reference/cstdlib/atof/ atof (C++)] [[Floating Point Number#Floating Point Literals|Floating point literals]]
|seealso= [[BIS_fnc_parseNumber]] {{Link|http://www.cplusplus.com/reference/cstdlib/atof/|atof (C++)}} [[Floating Point Number#Floating Point Literals|Floating point literals]]
}}
}}

Latest revision as of 12:39, 10 May 2024

Logo A1 black.png1.00Logo A2.png1.00A2 OA Logo.png1.50tkoh logo small.png1.00Arma 3 logo black.png0.50
Hover & click on the images for description

Description

Description:
Parses the string, interpreting its content as a floating point number.
⚠
This command does not work with strings representing hexadecimal numbers (e.g "0xCF").
parseNumber "512 + 0x2F"; // 512, WRONG! "512 + 0x2F" call BIS_fnc_parseNumber // 559, CORRECT!
ⓘ
Starting whitespaces are discarded, then as many valid characters are used to be interpreted as a number until an invalid character is found then the rest of the string is ignored.
Groups:
Strings

Syntax

Syntax:
parseNumber value
Parameters:
value: String or Arma 3 logo black.png1.50 Boolean
Return Value:
Number - the parsed number, 0 if no valid number was found; in the case of a passed Boolean, 0 if false, 1 if true

Examples

Example 1:
_number = parseNumber "0.125"; // 0.125 _number = parseNumber "0050"; // 50 _number = parseNumber " 42 yes"; // 42 _number = parseNumber "3 or 4"; // 3 _number = parseNumber "either 3 or 4"; // 0 _number = parseNumber "0xCF"; // 0
Example 2:
since Arma 3 v1.50:
_result = parseNumber false; // 0 _result = parseNumber true; // 1 _zeroOneStatus = parseNumber alive player; // 0 if the player is dead, 1 if alive

Additional Information

See also:
BIS_fnc_parseNumber atof (C++) Floating point literals

Notes

Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note
Retrieved from "https://community.bistudio.com/wiki?title=parseNumber&oldid=364381"