diff options
Diffstat (limited to 'build2/variable')
| -rw-r--r-- | build2/variable | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/build2/variable b/build2/variable index aa554fe..e78b074 100644 --- a/build2/variable +++ b/build2/variable @@ -1218,13 +1218,13 @@ namespace build2 // In many places we assume that we can store a reference to the returned // variable value (e.g., install::lookup_install()). As a result, in case - // of append/prepent where we calculate the value dynamically, we have to - // cache it. + // of append/prepend where we calculate the value dynamically, we have to + // cache it (note, however, that if the value becomes stale, there is no + // guarantee the references remain valid). // - // The key is the combination of the "original value idenity" (as a + // The key is the combination of the "original value identity" (as a // pointer to the value in variable_pattern_map) and the "target identity" - // (as target type and target name). The target name, unfortunately, has - // to be stored by value (maybe will pool them at some point). + // (as target type and target name). // // @@ MT // |