Wiki source for KeyPgDeflng


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{{fbdoc item="title" value="DEFLNG"}}----
Specifies a default data type for a range of variable names

{{fbdoc item="syntax"}}##
**Deflng** //start_letter//[**-**//end_letter// ][, ...]
##
{{fbdoc item="param"}}
##//start_letter//##
the first letter in the range
##//end_letter//##
the last letter in the range

{{fbdoc item="desc"}}
##**Deflng**## specifies that variables and arrays which aren't declared with a data type - or not declared at all - are implicitly declared of type ##[[KeyPgLong|Long]]## if the first letter of their names matches a certain letter or lies within an inclusive range of letters.

{{fbdoc item="ex"}}
This will make ##lNumber## a ##[[KeyPgLong|Long]]## integer number since it starts with l.
{{fbdoc item="filename" value="examples/manual/switches/deflng.bas"}}%%(freebasic)
'' Compile with -lang fblite or qb

#lang "fblite"

DefLng l
Dim lNumber ' implicit: As Long

Print Len(lNumber) ' Displays 4, the number of bytes in a long.
%%

{{fbdoc item="lang"}}
- Only available in the //[[CompilerOptlang|-lang qb]]// and //[[CompilerOptlang|-lang fblite]]// dialects.

{{fbdoc item="diff"}}
- None

{{fbdoc item="see"}}
- ##[[KeyPgDefint|Defint]]##
- ##[[KeyPgDefulongint|Defulongint]]##
- ##[[KeyPgDim|Dim]]##
- ##[[KeyPgLongint|Longint]]##

{{fbdoc item="back" value="CatPgCompilerSwitches|Compiler Switches"}}
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