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--- c:stdio.h:vsprintf [2013/01/22 22:02]
+++ c:stdio.h:vsprintf [2024/02/16 01:05] (current)
@@ Line 1: / Line 1: @@
+{{keywords>wiki library source code example reference}}
+===== vsprintf =====
+<code c>
+    int vsprintf(char *str, const char *format, va_list arg);
+</code>
+generate a string from a format string.
+For this purpose, the buffer that is passed as first argument, the format string is copied and replaces the substitution symbol with the given parameters.
+===== C Sourcecode Example =====
+<code c>
+/*
+ * vsprintf example code
+ * http://code-reference.com/c/stdio.h/vsprintf
+ */
+#include <stdio.h> /* including standard library */
+//#include <windows.h> /* uncomment this for Windows */
+#include <stdarg.h>
+int myprintf( char const * format, ... )
+{
+  va_list args;
+  int n;
+  char buffer[200];
+  va_start( args, format );
+  vsprintf( buffer, format, args );
+  va_end( args );
+  return printf("vsprintf example : %s", buffer);
+}
+int main (void)
+{
+  char string[] ="Hello";
+   myprintf( " %s World\n", string);
+   return 0;
+}
+</code>
+==== output ====
+    output:  ./vsprintf
+    vsprintf example : Hello World

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