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An ACS library for ZDoom-based ports

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string [2019/04/19 02:18] – created korshunstring [2019/04/19 02:46] – korshun
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 ''%%""%%'' is an empty string, i.e. a valid string of length 0. It can be passed to any function and will work as expected. ''%%""%%'' is an empty string, i.e. a valid string of length 0. It can be passed to any function and will work as expected.
  
-===== Comparing strings for equality =====+===== Checking string equality =====
  
 +<note warning>Do not use ''=='' to check if strings are equal.</note>
  
 +Operator ''=='' only checks if string **numbers** are equal. It may mostly work and then stop working randomly, or when used with a string coming from a different ACS library.
  
 +To check if strings are equal, you need to compare their contents. ACSUtils provides an easy to use function for this, which returns true if two strings are equal:
 +
 +''bool StrEquals(str a, str b)''
 +
 +Internally, this function calls harder to use [[zdoom>StrCmp]], but they could just as well be implemented using a combination of [[zdoom>StrLen]] and [[zdoom>GetChar]].
 +
 +There is also a case-insensitive version:
 +
 +''bool StrIEquals(str a, str b)''
 +
 +It's implemented using [[zdoom>StrICmp]].
 +
 +===== String functions =====
 +
 +==== StrIsEmpty ====
 +''bool StrIsEmpty(str s)''
 +
 +Returns true if the string is an empty string (''%%""%%'').
  
  
  
  
string.txt · Last modified: 2019/04/19 02:48 by korshun

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