tutorials:faq:main
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revision | Next revisionBoth sides next revision | ||
| tutorials:faq:main [2020/10/19 19:20] – miconda | tutorials:faq:main [2021/04/03 06:15] – miconda | ||
|---|---|---|---|
| Line 613: | Line 613: | ||
| if($var(x) == 0) { | if($var(x) == 0) { | ||
| # do something | # do something | ||
| + | } | ||
| + | </ | ||
| + | |||
| + | To compare the return code of a function with a number is recommended to use the value stored in $rc, because the priority of the operators can convert function return code to internal-true or internal-false. Therefore the next approach should be used: | ||
| + | |||
| + | <code c> | ||
| + | function_returns_four(); | ||
| + | $var(rc4) = $rc; | ||
| + | if($var(rc4)==4) { | ||
| + | # it goes here | ||
| + | } else { | ||
| + | # it doesn' | ||
| + | } | ||
| + | ... | ||
| + | function_returns_two(); | ||
| + | $var(rc2) = $rc; | ||
| + | if($var(rc4)==$var(rc2)) { | ||
| + | # it doesn' | ||
| + | } else { | ||
| + | # it goes here | ||
| } | } | ||
| </ | </ | ||
tutorials/faq/main.txt · Last modified: 2021/08/27 06:11 by miconda