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Line 992: |
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=={{header|REXX}}== |
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=={{header|REXX}}== |
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In the REXX language, all variables are local, and only within PROCEDUREs are variables local (private), except |
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In the REXX language, all variables are global, and only within PROCEDUREs are variables local (private), except for those identified |
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<br>for those identified via the EXPOSE option. There is a variant where the EXPOSE can have a list specified. |
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<br>via the '''expose''' option. There is a variant where the '''expose''' can have a list specified (along with variables and stems). |
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<br>Any REXX variables in an external routine (program) aren't known.
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Any REXX variables in an external routine (program) aren't known. |
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<br>Note: the R4 REXX interpreter has an ''' EXPOSEALL''' option that allows an external REXX subroutine to access the caller's local variables. |
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<br>There is a mechanism that allows external programs to access local REXX variables and is essentially restricted to |
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Note: the R4 REXX interpreter has an ''' exposeall''' option that allows an external REXX subroutine to access the caller's local variables. |
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<br> assembler programs that use the REXXAPI interface. |
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<br>There is a mechanism that allows external programs to access local REXX variables and is essentially restricted to assembler programs |
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<br>All labels (names of subroutines/functions/procedures) are global. |
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<br> (or other programs ) that use the REXXAPI interface. |
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<br>If more than one identical label is specified, only the first label is recognized (and not considered an error). |
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All labels (names of subroutines/functions/procedures) are global , regardless of procedures. |
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If more than one identical label is specified, only the first label is recognized (and it isn't considered an error). |
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<lang rexx>/*REXX program to display scope modifiers (for subroutines/functions). */ |
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<lang rexx>/*REXX program to display scope modifiers (for subroutines/functions). */ |
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a=1/4 |
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a=1/4 |
