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-rw-r--r--src/lib9/fmt/sprint.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lib9/fmt/sprint.c b/src/lib9/fmt/sprint.c
index ba60228a..1ab5ce62 100644
--- a/src/lib9/fmt/sprint.c
+++ b/src/lib9/fmt/sprint.c
@@ -30,7 +30,7 @@ sprint(char *buf, char *fmt, ...)
* we must be sure not to overflow a 32-bit pointer.
*/
if(buf+len < buf)
- len = -(uint)buf-1;
+ len = -(uintptr)buf-1;
va_start(args, fmt);
n = vsnprint(buf, len, fmt, args);