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val [2019/05/27 21:26] – neilsval [2019/06/02 21:32] – neils
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   val!(<string ptr str>) |  val(<string ptr str>) | val%(<string ptr str>)   val!(<string ptr str>) |  val(<string ptr str>) | val%(<string ptr str>)
      
-The ''VAL()'' function tries to parse the numeric value in a string pointed by //str// to the numeric type of the function. Parsing stops at the first character that is non-numeric (or a minus sign if the function type is integer).+The ''VAL()'' function tries to parse the numeric value in a string pointed by //str// to the numeric type of the function. 
 + 
 +===== Parsing rules for VAL!() ===== 
 + 
 +The ''VAL!()'' function will return 0 if: 
 + 
 +  * The argument points to an empty string 
 +  * The string is longer than 3 characters 
 +  * The string contains any non-numeric character, including a space 
 +  * The numeric value exceeds 255 
 + 
 +===== Parsing rules for VAL() ===== 
 + 
 +The ''VAL!()'' function will return 0 if: 
 + 
 +  * The argument points to an empty string 
 +  * The string is longer than 6 characters 
 +  * The string contains any non-numeric character, except for the first character which can be a minus sign (''-'') 
 +  * The numeric value is less than -32768 or greater than +32767 
 + 
 +===== Parsing rules for VAL%() =====
  
 The ''VAL%()'' function is hardwired to the equivalent function in BASIC ROM, please refer to [[https://www.c64-wiki.com/wiki/VAL|this page]] for parsing rules. The ''VAL%()'' function is hardwired to the equivalent function in BASIC ROM, please refer to [[https://www.c64-wiki.com/wiki/VAL|this page]] for parsing rules.