47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "plstr.h"
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#include "prtypes.h"
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#include "prlog.h"
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#include <string.h>
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PR_IMPLEMENT(PRUint32)
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PL_strlen(const char *str)
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{
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size_t l;
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if( (const char *)0 == str ) {
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return 0;
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}
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l = strlen(str);
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/* error checking in case we have a 64-bit platform -- make sure
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* we don't have ultra long strings that overflow an int32
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*/
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if( sizeof(PRUint32) < sizeof(size_t) )
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{
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if( l > PR_INT32_MAX ) {
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PR_Assert("l <= PR_INT32_MAX", __FILE__, __LINE__);
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}
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}
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return (PRUint32)l;
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}
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PR_IMPLEMENT(PRUint32)
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PL_strnlen(const char *str, PRUint32 max)
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{
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register const char *s;
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if( (const char *)0 == str ) {
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return 0;
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}
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for( s = str; max && *s; s++, max-- )
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;
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return (PRUint32)(s - str);
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}
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