Re^3: What can we assume in a BEGIN block ?

OK, so now I know I really dont get it.

What variable got incremented at compile time ? If the "our $initialised" doesnt happen till run-time, what did we increment during the BEGIN?

use brain;

Comment on Re^3: What can we assume in a BEGIN block ?

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Re^4: What can we assume in a BEGIN block ? by diotalevi (Canon) on Oct 04, 2004 at 13:40 UTC
The variable $initialized was declared by the `my $initialized`. This made it known the parser so when the source code farther down saw it, it incremented the variable. At the time, the value was still undefined because while the variable had been declared, the `= 0;` hadn't run yet. So now `$variable = 1` after the BEGIN. Now that the file is finished being parsed, execution starts at the top so now you run `$initialized = 0;`. $variable := undef -> 1 -> 0	[reply] [d/l] [select]

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Re^4: What can we assume in a BEGIN block ?
by diotalevi (Canon) on Oct 04, 2004 at 13:40 UTC

The variable $initialized was declared by the my $initialized. This made it known the parser so when the source code farther down saw it, it incremented the variable. At the time, the value was still undefined because while the variable had been declared, the = 0; hadn't run yet. So now $variable = 1 after the BEGIN. Now that the file is finished being parsed, execution starts at the top so now you run $initialized = 0;.

$variable := undef -> 1 -> 0

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