I want to replace all instances of '::memcpy()' with my custom made 'customMemcpy()' defined in a file 'Memory.h' in my project. This call is made from lot of places so doing it manually is pain. Is there any clever method to do it programmatically?
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4Whats wrong with Find and Replace? – Ash Burlaczenko Mar 21 '12 at 15:38
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2It seems you have already got a 'method to do it problematically' :-( Perhaps you want to do it programmatically, in which case perhaps your IDE (vi ? Emacs ? Notepad ?) can help. Tell us what that is, we may be able to provide proper help rather than silly comments. – High Performance Mark Mar 21 '12 at 15:39
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1You could `#define memcpy customMemcpy`, assuming the parameters are the same. – Grimm The Opiner Mar 21 '12 at 15:40
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2Any text editing tool I know of (even ed) has a "Search&Replace" function. Why not use that? – cli_hlt Mar 21 '12 at 15:40
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Using Search and replace is not really good enough it can cause too many problems. http://stackoverflow.com/a/4665620/14065 In this case modify to change memcpy to XXXmemcpyXXX. – Martin York Mar 21 '12 at 16:09
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@LokiAstari: most IDE Search and Replace have an option for "Match entire word" that fixes that problem. – Mooing Duck Mar 21 '12 at 17:42
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@MooingDuck: No IDE can not cope with the size of the code base I use. – Martin York Mar 21 '12 at 19:17
3 Answers
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You can use wrapping mechanism, see http://sourceware.org/binutils/docs/ld/Options.html (find --wrap=symbol) for example. This way gives you acess both to your and original function.
vissi2
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find . -name '*.cpp' -print0 | xargs -0 -l sed -i -e 's/\<memcpy\>/customMemcpy/'
Robᵩ
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#define memcpy(dst,src,size) custom_memcpy(dst, src, size)
void custom_memcpy(void* dst, const void* src, size_t size)
{
//TODO: Implement Custom Memcpy
}
TVOHM
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