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+{{keywords>wiki library source code example reference}}
+====== setbuf ======
+<code c>
+    void setbuf(FILE *stream, char *buffer);
+</code>
+Controls buffering for stream stream. For null buf, turns off buffering, otherwise equivalent to (void)setvbuf(stream, buf, _IOFBF, BUFSIZ).
+setbuf is deprecated use [[c:stdio.h:setvbuf|]] instead
+===== C Sourcecode Example =====
+<code c>
+/*
+ * setbuf example code
+ * http://code-reference.com/c/stdio.h/setbuf
+ */
+#include <stdio.h> /* including standard library */
+//#include <windows.h> /* uncomment this for Windows */
+int main( void )
+{
+  FILE *stream = fopen("test.txt", "w");
+  FILE *stream2 = fopen("test2.txt","w");
+  char buffer[100];
+  char buffer2[BUFSIZ];
+  setbuf(stream, buffer);
+  fputs("Buffered input for test.txt", stream);
+  fflush(stream);
+  fclose(stream);
+  setbuf(stream2, buffer2);
+  fputs("Buffered input for test2.txt", stream2);
+  fflush(stream2);
+  fclose(stream2);
+  return 0;
+}
+</code>
+    output: ./setbuf
+==== content of test.txt ===
+<code c>
+Buffered input for test.txt
+</code>
+==== content of test2.txt ===
+<code c>
+Buffered input for test2.txt
+</code>

on the occasion of the current invasion of Russia in Ukraine