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authorVladimir Azarov <avm@intermediate-node.net>2024-10-01 15:47:05 +0200
committerVladimir Azarov <avm@intermediate-node.net>2024-10-01 15:47:05 +0200
commit4abab5ad6c8465a7528ccdd5f49367da05f78bbd (patch)
treeebf009bf1376a5a223a915bc27cbbd791a1316bc /src/stdio/__overflow.c
Initial version
Diffstat (limited to 'src/stdio/__overflow.c')
-rw-r--r--src/stdio/__overflow.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/stdio/__overflow.c b/src/stdio/__overflow.c
new file mode 100644
index 0000000..e65a594
--- /dev/null
+++ b/src/stdio/__overflow.c
@@ -0,0 +1,10 @@
+#include "stdio_impl.h"
+
+int __overflow(FILE *f, int _c)
+{
+ unsigned char c = _c;
+ if (!f->wend && __towrite(f)) return EOF;
+ if (f->wpos != f->wend && c != f->lbf) return *f->wpos++ = c;
+ if (f->write(f, &c, 1)!=1) return EOF;
+ return c;
+}