1 /*

     2 * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 * FUNCTION

    16 * <<strchr>>---search for character in string

    17 * INDEX

    18 * strchr

    19 * ANSI_SYNOPSIS

    20 * #include <string.h>

    21 * char * strchr(const char *<[string]>, int <[c]>);

    22 * TRAD_SYNOPSIS

    23 * #include <string.h>

    24 * char * strchr(<[string]>, <[c]>);

    25 * char *<[string]>;

    26 * int *<[c]>;

    27 * This function finds the first occurence of <[c]> (converted to

    28 * a char) in the string pointed to by <[string]> (including the

    29 * terminating null character).

    30 * RETURNS

    31 * Returns a pointer to the located character, or a null pointer

    32 * if <[c]> does not occur in <[string]>.

    33 * PORTABILITY

    34 * <<strchr>> is ANSI C.

    35 * <<strchr>> requires no supporting OS subroutines.

    36 * QUICKREF

    37 * strchr ansi pure

    38 * 

    39 *

    40 */

    41 

    42 

    43 

    44 #include <string.h>

    45 

    46 /**

    47 Find character in string.

    48 Returns the first occurrence of i in string.

    49 The null-terminating character is included as part of the string 

    50 and can also be searched.

    51 @return a pointer to the first occurrence of i in string is returned.

    52 otherwise NULL is returned.

    53 @param s Null-terminated string scanned in the search. 

    54 @param i Character to be found.

    55 */

    56 EXPORT_C char *

    57 strchr (const char *s, int i)

    58 {

    59 	i = (char)i;

    60 

    61 	for (;;)

    62 	{

    63 		int c = *s++;

    64 		if (c == i)

    65 			return (char *) (s - 1);

    66 		if (c == 0)

    67 			return NULL;

    68 	}

    69 }

    70 

    71 EXPORT_C char *

    72 index (const char *s, int i)

    73 {

    74     return strchr(s, i);

    75 }