commit 68ae6ad12e4f89526638f167c380d0b28b3bdeac
author Elliott Hughes <enh@google.com> Tue Jul 21 16:11:30 2020 -0700
committer Elliott Hughes <enh@google.com> Tue Jul 21 16:34:58 2020 -0700
tree e18075751c1f0d08d94d7c6be14e1a18b560b285
parent c79ea239415963d4a38752d0f3efe50531c8e04f

Changes for #inclusivefixit.

Test: treehugger
Change-Id: I7ff0496c5c2792a41781e74634247f55b0548213

libc/bionic/sysinfo.cpp

diff --git a/libc/bionic/sysinfo.cpp b/libc/bionic/sysinfo.cpp
index 1d1070e..7ab8e9e 100644
--- a/libc/bionic/sysinfo.cpp
+++ b/libc/bionic/sysinfo.cpp
@@ -38,9 +38,10 @@
 
 static bool __matches_cpuN(const char* s) {
   // The %c trick is to ensure that we have the anchored match "^cpu[0-9]+$".
+  // We can't use %*c because the return value is how many were *assigned*.
   unsigned cpu;
-  char dummy;
-  return (sscanf(s, "cpu%u%c", &cpu, &dummy) == 1);
+  char unused;
+  return (sscanf(s, "cpu%u%c", &cpu, &unused) == 1);
 }
 
 int get_nprocs_conf() {