Difference between revisions of "DEFSNG"

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* Variables [[DIM]]ensioned as another variable type or that use type suffixes are not defined otherwise.
 
* Variables [[DIM]]ensioned as another variable type or that use type suffixes are not defined otherwise.
 
* DEFSNG is normally the Qbasic default assignment for undefined variables anyhow.
 
* DEFSNG is normally the Qbasic default assignment for undefined variables anyhow.
* '''Note: Qbasic's IDE may add DEF statements before any [[SUB]] or [[FUNCTION]]. QB64 will change all variable types in subsequent sub-procedures to that default variable type without giving a [[ERROR Codes|"Parameter Mismatch"]] warning! If you do not want that to occur, either remove that DEF statement or add the proper type statements to subsequent procedures.'''
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* '''Qbasic's IDE may add DEF statements before any [[SUB]] or [[FUNCTION]]. QB64 will change all variable types in subsequent sub-procedures to that default variable type without giving a [[ERROR Codes|"Parameter Type Mismatch"]] warning! If you do not want that to occur, either remove that DEF statement or add the proper type statements to subsequent procedures.'''
  
  

Revision as of 19:30, 11 February 2011

The DEFSNG statement defines all designated undefined variables AS SINGLE variables.


Syntax: DEFSNG firstletters


  • The variable first letters can be from A-Z or any other range.
  • You can also use commas for specific untyped variable first letters.
  • Variables DIMensioned as another variable type or that use type suffixes are not defined otherwise.
  • DEFSNG is normally the Qbasic default assignment for undefined variables anyhow.
  • Qbasic's IDE may add DEF statements before any SUB or FUNCTION. QB64 will change all variable types in subsequent sub-procedures to that default variable type without giving a "Parameter Type Mismatch" warning! If you do not want that to occur, either remove that DEF statement or add the proper type statements to subsequent procedures.


Example: DEFSNG A-D, S


See also:



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