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-rw-r--r--src/stdio/putc_unlocked.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/stdio/putc_unlocked.c b/src/stdio/putc_unlocked.c
new file mode 100644
index 00000000..f01da717
--- /dev/null
+++ b/src/stdio/putc_unlocked.c
@@ -0,0 +1,8 @@
+#include "stdio_impl.h"
+
+int putc_unlocked(int c, FILE *f)
+{
+ return f->wpos < f->wstop ? (*f->wpos++ = c) : __overflow(f, c);
+}
+
+weak_alias(putc_unlocked, fputc_unlocked);