kc3-lang/libxml2/test/XPath/expr/strings

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• Hash : 30a6533e
  Author :
  Date : 2019-03-08T12:15:17
  

  Fix float casts in xmlXPathSubstringFunction
  
  Rewrite conversion of double to int in xmlXPathSubstringFunction, adding
  range checks to avoid undefined behavior. Make sure to add start and
  length as floating-point numbers before converting to int. Fix a bug
  when rounding negative start indices.
  
  Remove unneeded calls to xmlXPathIs{Inf,NaN} and rely on IEEE math
  instead. Avoid computing the string length. xmlUTF8Strsub works as
  expected if the length of the requested substring exceeds the input.
  
  Found with libFuzzer and UBSan.
  

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• test/XPath/expr/strings

• string(5)
  string(0.5)
  string(-0.5)
  string(true())
  string(false())
  string(12345678901234567890)
  string(-12345678901234567890)
  concat("titi","toto")
  concat("titi","toto","tata")
  concat("titi",'toto')
  concat("titi",'toto',"tata","last")
  starts-with("tititoto","titi")
  starts-with("tititoto","to")
  contains("tititototata","titi")
  contains("tititototata","toto")
  contains("tititototata","tata")
  contains("tititototata","tita")
  substring("12345",2,3)
  substring("12345",2)
  substring("12345",-4)
  substring("12345",3.4)
  substring("12345",3.6)
  substring("12345",1.5,2.6)
  substring("12345",2.2,2.2)
  substring("12345",0,3)
  substring("12345",-8,10)
  substring("12345",4,-10)
  substring("12345",0 div 0, 3)
  substring("12345",1, 0 div 0)
  substring("12345",1 div 0, 3)
  substring("12345",3,-1 div 0)
  substring("12345",-42, 1 div 0)
  substring("12345",-1 div 0, 1 div 0)
  substring("12345",-1 div 0,5)
  substring("12345",-0.7,4)
  substring("12345",-5000000000,5000000004)
  string-length("")
  string-length("titi")
  

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