genericopenlibs/cstdlib/LCHAR/STRNCAT.C
changeset 0 e4d67989cc36
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/cstdlib/LCHAR/STRNCAT.C	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,81 @@
+/*
+* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+* FUNCTION
+* <<strncat>>---concatenate strings
+* INDEX
+* strncat
+* ANSI_SYNOPSIS
+* #include <string.h>
+* char *strncat(char *<[dst]>, const char *<[src]>, size_t <[length]>);
+* TRAD_SYNOPSIS
+* #include <string.h>
+* char *strncat(<[dst]>, <[src]>, <[length]>)
+* char *<[dst]>;
+* char *<[src]>;
+* size_t <[length]>;
+* <<strncat>> appends not more than <[length]> characters from
+* the string pointed to by <[src]> (including the	terminating
+* null character) to the end of the string pointed to by
+* <[dst]>.  The initial character of <[src]> overwrites the null
+* character at the end of <[dst]>.  A terminating null character
+* is always appended to the result
+* WARNINGS
+* Note that a null is always appended, so that if the copy is
+* limited by the <[length]> argument, the number of characters
+* appended to <[dst]> is <<n + 1>>.
+* RETURNS
+* This function returns the initial value of <[dst]>
+* PORTABILITY
+* <<strncat>> is ANSI C.
+* <<strncat>> requires no supporting OS subroutines.
+* QUICKREF
+* strncat ansi pure
+* 
+*
+*/
+
+
+
+#include <string.h>
+
+/**
+Append substring to string.
+Appends num characters of src string to dest string. 
+If the terminating null-character appears in src string 
+before num character have been appended, the function appends 
+the null-character to dest and ends.
+The terminating null character in dest is overwritten by the first character of src.
+The resulting string includes a null-character at end.
+@return s1 is returned
+@param s1 Pointer to a null-terminated string with enough space allocated to contain src
+plus num characters. 
+@param s2 Null-terminated string containing characters to be appended. 
+@param n Number of characters to be appended from src to dest.
+*/
+EXPORT_C char *
+strncat (char *s1, const char *s2, size_t n)
+{
+  char *s = s1;
+
+  while (*s1)
+    s1++;
+  while (n-- != 0 && (*s1++ = *s2++)!=0)
+    {
+      if (n == 0)
+	*s1 = '\0';
+    }
+
+  return s;
+}