1 | // Scintilla source code edit control |
2 | /** @file StringCopy.h |
3 | ** Safe string copy function which always NUL terminates. |
4 | ** ELEMENTS macro for determining array sizes. |
5 | **/ |
6 | // Copyright 2013 by Neil Hodgson <neilh@scintilla.org> |
7 | // The License.txt file describes the conditions under which this software may be distributed. |
8 | |
9 | #ifndef STRINGCOPY_H |
10 | #define STRINGCOPY_H |
11 | |
12 | namespace Lexilla { |
13 | |
14 | // Safer version of string copy functions like strcpy, wcsncpy, etc. |
15 | // Instantiate over fixed length strings of both char and wchar_t. |
16 | // May truncate if source doesn't fit into dest with room for NUL. |
17 | |
18 | template <typename T, size_t count> |
19 | void StringCopy(T (&dest)[count], const T* source) { |
20 | for (size_t i=0; i<count; i++) { |
21 | dest[i] = source[i]; |
22 | if (!source[i]) |
23 | break; |
24 | } |
25 | dest[count-1] = 0; |
26 | } |
27 | |
28 | #define ELEMENTS(a) (sizeof(a) / sizeof(a[0])) |
29 | |
30 | } |
31 | |
32 | #endif |
33 | |