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Diffstat (limited to 'doc/language/keyword/cpsc-keyword-function.7.md')
| -rw-r--r-- | doc/language/keyword/cpsc-keyword-function.7.md | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/language/keyword/cpsc-keyword-function.7.md b/doc/language/keyword/cpsc-keyword-function.7.md index a177afa..52efa90 100644 --- a/doc/language/keyword/cpsc-keyword-function.7.md +++ b/doc/language/keyword/cpsc-keyword-function.7.md @@ -17,6 +17,8 @@ ENDFUNCTION Call a function in an expression as `name(arguments)`. A call may precede its top-level definition. RETURNS specifies the result type; omitting it defaults to INTEGER. RETURN supplies a value of that type. Whole-array results are unsupported. +As a compiler extension, `name(arguments)` may also be a complete statement that discards the result. This differs from guide section 8.2, which requires function calls to occur within expressions. Built-in functions support the same form. + Parameters use `name : type`, optionally prefixed by BYVAL. BYVAL is the default; BYREF is forbidden for functions (guide section 8.3). Array parameters accept `ARRAY OF type` (one dimension) or `ARRAY[lower:upper, ...] OF type` (integer literal bounds). BYVAL arrays are copied. RETURNS, RETURN, BYVAL, and ENDFUNCTION belong here. # EXAMPLE |