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37 lines
909 B
C++
37 lines
909 B
C++
// Scintilla source code edit control
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/** @file StringCopy.h
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** Safe string copy function which always NUL terminates.
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** ELEMENTS macro for determining array sizes.
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**/
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// Copyright 2013 by Neil Hodgson <neilh@scintilla.org>
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// The License.txt file describes the conditions under which this software may be distributed.
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#ifndef STRINGCOPY_H
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#define STRINGCOPY_H
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#ifdef SCI_NAMESPACE
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namespace Scintilla {
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#endif
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// Safer version of string copy functions like strcpy, wcsncpy, etc.
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// Instantiate over fixed length strings of both char and wchar_t.
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// May truncate if source doesn't fit into dest with room for NUL.
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template <typename T, size_t count>
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void StringCopy(T (&dest)[count], const T* source) {
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for (size_t i=0; i<count; i++) {
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dest[i] = source[i];
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if (!source[i])
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break;
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}
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dest[count-1] = 0;
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}
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#define ELEMENTS(a) (sizeof(a) / sizeof(a[0]))
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#ifdef SCI_NAMESPACE
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}
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#endif
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#endif
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