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| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | Doc/Zsh/builtins.yo | 6 |
2 files changed, 9 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 6381e4f4a..b9ffd9471 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,8 @@ 2021-05-18 Daniel Shahaf <d.s@daniel.shahaf.name> + * 48601/0003: Doc/Zsh/builtins.yo: docs: functions -M: Add a + subheading and index entries. + * 48601/0002: Doc/Zsh/builtins.yo: docs: functions -M: Document the return status / result interdependency gotchas (cf. 48147). diff --git a/Doc/Zsh/builtins.yo b/Doc/Zsh/builtins.yo index 51b1f1744..0129c6b57 100644 --- a/Doc/Zsh/builtins.yo +++ b/Doc/Zsh/builtins.yo @@ -893,6 +893,10 @@ without affecting the other. A typical idiom is that var(oldfn) is the name of a library shell function which is then redefined to call tt(newfn), thereby installing a modified version of the function. +em(The )tt(-M)em( and )tt(+M)em( flags) +cindex(defining mathematical functions) +cindex(functions, defining mathematical) + Use of the tt(-M) option may not be combined with any of the options handled by tt(typeset -f). @@ -929,6 +933,8 @@ Therefore, care must be taken not to use syntactical constructs that perform arithmetic evaluation after evaluating what is to be the result of the function. For example: +findex(zmath_cube) +findex(cube) example(# WRONG zmath_cube+LPAR()+RPAR() { (( $1 * $1 * $1 )) |