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authorBoris Kolpackov <boris@codesynthesis.com>2023-08-09 08:54:37 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2023-08-09 08:54:37 +0200
commit2109dedc473944dbb38756cd48d0c44f996304c4 (patch)
tree70544a43e6e403c7874cb250195346503edbe716 /libbuild2/functions-integer.cxx
parentd7b3619dad84f4f24aa3ab6629246a3324bdc2cd (diff)
Complete and cleanup function documentation in preparation for auto-extraction
Also: - Move the $target.*() function family from functions-name.cxx to separate functions-target.cxx. - Get rid of the separate $process_path_ex.*() family, merging it with $process_path.*().
Diffstat (limited to 'libbuild2/functions-integer.cxx')
-rw-r--r--libbuild2/functions-integer.cxx17
1 files changed, 14 insertions, 3 deletions
diff --git a/libbuild2/functions-integer.cxx b/libbuild2/functions-integer.cxx
index a634ae9..934f753 100644
--- a/libbuild2/functions-integer.cxx
+++ b/libbuild2/functions-integer.cxx
@@ -69,6 +69,16 @@ namespace build2
// $string(<int64>)
// $string(<uint64>[, <base>[, <width>]])
//
+ // Convert an integer to a string. For unsigned integers we can specify
+ // the desired base and width. For example:
+ //
+ // x = [uint64] 0x0000ffff
+ //
+ // c.poptions += "-DOFFSET=$x" # -DOFFSET=65535
+ // c.poptions += "-DOFFSET=$string($x, 16)" # -DOFFSET=0xffff
+ // c.poptions += "-DOFFSET=$string($x, 16, 8)" # -DOFFSET=0x0000ffff
+ //
+
// Note that we don't handle NULL values for these type since they have no
// empty representation.
//
@@ -82,9 +92,10 @@ namespace build2
// $integer_sequence(<begin>, <end>[, <step>])
//
// Return the list of uint64 integers starting from <begin> (including) to
- // <end> (excluding) with the specified <step> or 1 if unspecified. If
+ // <end> (excluding) with the specified <step> or `1` if unspecified. If
// <begin> is greater than <end>, empty list is returned.
//
+
// Note that currently negative numbers are not supported but this could
// be handled if required (e.g., by returning int64s in this case).
//
@@ -123,7 +134,7 @@ namespace build2
//
// The following flags are supported:
//
- // dedup - in addition to sorting also remove duplicates
+ // dedup - in addition to sorting also remove duplicates
//
f["sort"] += [](int64s v, optional<names> fs)
{
@@ -164,7 +175,7 @@ namespace build2
// $find_index(<ints>, <int>)
//
// Return the index of the first element in the integer sequence that is
- // equal to the specified integer or $size(<ints>) if none is found.
+ // equal to the specified integer or `$size(ints)` if none is found.
//
f["find_index"] += [](int64s vs, value v)
{