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git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@2321 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/util/vasprintf.c b/lib/util/vasprintf.c
index b294763a..a947f763 100644
--- a/lib/util/vasprintf.c
+++ b/lib/util/vasprintf.c
@@ -40,6 +40,12 @@ pm_vasprintf(const char ** const resultP,
 
        So instead, we just allocate 4K and truncate or waste as
        necessary.
+
+       Note that we don't recognize the floating point specifiers (%f, %e, %g)
+       - we render them as 'f', 'e', and 'g'.  It would be too much work to
+       make this code handle those, just for the few systems on which it runs.
+       Instead, we have pm_vasprintf_knows_float(), and any caller that cares
+       enough can avoid using these specifiers where they don't work.
     */
     size_t const allocSize = 4096;
     result = malloc(allocSize);