System Function LC: Difference between revisions
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<h1><apl>{quad}LC</apl> - Line Counter</h1> | <h1><apl>{quad}LC</apl> - Line Counter</h1> | ||
<apll>{quad}LC</apll> is an ISO 13751 standard niladic system function which returns an array of the current line numbers | <apll>{quad}LC</apll> is an ISO 13751 standard niladic system function which returns an array of the current line numbers being executed in every current function. Consider the following workspace: | ||
every current function. Consider the following workspace: | |||
<apll>{del} test<br/>[1] 'LC=' {quad}LC<br/>{del}<br/><br/>{del} test2<br/>[1] 'Calling Test'<br/>[2] test<br/>{del}<br/></apll> | <apll>{del} test<br/>[1] 'LC=' {quad}LC<br/>{del}<br/><br/>{del} test2<br/>[1] 'Calling Test'<br/>[2] test<br/>{del}<br/></apll> | ||
So the following commands would produce the following output: | So the following commands would produce the following output: | ||
<apll> test<br/>LC= 1 <br/><br/> test2<br/>Calling Test<br/>LC= 1 2</apll> | <apll> test<br/>LC= 1 <br/><br/> test2<br/>Calling Test<br/>LC= 1 2</apll> | ||
The program is currently executing line 1 of function '''test''' which was called by line 2 of '''test2'''. | |||
<apll>{quad}LC</apll> is a ''niladic'' function, you cannot assign a value to it. | <apll>{quad}LC</apll> is a ''niladic'' function, you cannot assign a value to it. | ||
{{System Variables}} | {{System Variables}} | ||
Revision as of 23:34, 21 February 2013
⎕LC - Line Counter
⎕LC is an ISO 13751 standard niladic system function which returns an array of the current line numbers being executed in every current function. Consider the following workspace:
∇ test
[1] 'LC=' ⎕LC
∇
∇ test2
[1] 'Calling Test'
[2] test
∇
So the following commands would produce the following output:
test
LC= 1
test2
Calling Test
LC= 1 2
The program is currently executing line 1 of function test which was called by line 2 of test2.
⎕LC is a niladic function, you cannot assign a value to it.
| System Variables (A value may be assigned to these except for ⎕DM) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| ⎕ALX | ⎕CT | ⎕DM | ⎕DT | ⎕ELX | ⎕FC | ⎕FEATURE | ⎕FPC | ⎕IC | ⎕IO |
| ⎕LR | ⎕LX | ⎕PP | ⎕PR | ⎕PW | ⎕RL | ⎕SA | ⎕WSID | ||
| Niladic System Functions (a value cannot be assigned to these) | |||||||||
| ⎕A | ⎕AV | ⎕EM | ⎕ET | ⎕LC | ⎕NNAMES | ⎕NNUMS | ⎕SI | ⎕SYSID | ⎕SYSVER |
| ⎕T | ⎕TC | ⎕TCBEL | ⎕TCBS | ⎕TCESC | ⎕TCFF | ⎕TCHT | ⎕TCLF | ⎕TCNL | ⎕TCNUL |
| ⎕TS | ⎕WA | ||||||||
| Monadic or dyadic system functions (a value cannot be assigned to these) | |||||||||
| ⎕AT | ⎕CR | ⎕DC | ⎕DFT | ⎕DL | ⎕DR | ⎕EA | ⎕EC | ⎕ERROR | ⎕ES |
| ⎕EX | ⎕FMT | ⎕FX | ⎕MF | ⎕NAPPEND | ⎕NC | ⎕NCREATE | ⎕NERASE | ⎕NINFO | ⎕NL |
| ⎕NLOCK | ⎕NREAD | ⎕NRENAME | ⎕NREPLACE | ⎕NRESIZE | ⎕NSIZE | ⎕NTIE | ⎕NUNTIE | ⎕STOP | ⎕TF |
| ⎕TRACE | ⎕UCS | ⎕VR | |||||||
| Note that quad functions and variables (except for the ⎕A family of functions) are case insensitive | |||||||||
