Comment cleanups.

[pdclib] / functions / stdio / vsnprintf.c

diff --git a/functions/stdio/vsnprintf.c b/functions/stdio/vsnprintf.c
index 9eb869e78cb2b7dbb52c9eab259b0fba1670283c..dccd90e719d5ccdf67713df42fcad3e27ed3f8e3 100644 (file)
--- a/functions/stdio/vsnprintf.c
+++ b/functions/stdio/vsnprintf.c
@@ -1,6 +1,4 @@
-/* $Id$ */
-
-/* vsnprintf( char *, size_t, const char *, va_list ap )
+/* vsnprintf( char *, size_t, const char *, va_list )
 
    This file is part of the Public Domain C Library (PDCLib).
    Permission is granted to use, modify, and / or redistribute at will.
@@ -32,7 +30,12 @@ int vsnprintf( char * _PDCLIB_restrict s, size_t n, const char * _PDCLIB_restric
         if ( ( *format != '%' ) || ( ( rc = _PDCLIB_print( format, &status ) ) == format ) )
         {
             /* No conversion specifier, print verbatim */
-            s[ status.i++ ] = *(format++);
+            if ( status.i < n )
+            {
+                s[ status.i ] = *format;
+            }
+            status.i++;
+            format++;
         }
         else
         {
@@ -40,7 +43,10 @@ int vsnprintf( char * _PDCLIB_restrict s, size_t n, const char * _PDCLIB_restric
             format = rc;
         }
     }
-    s[ status.i ] = '\0';
+    if ( status.i  < n )
+    {
+        s[ status.i ] = '\0';
+    }
     va_end( status.arg );
     return status.i;
 }