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0011758: TCollection strings are not memory safe as reported by Purify

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Custom string handling code enabled by OptJr macro removed from implementation of strings in TCollection and elsewhere.
Functions from string.h are used instead of macros from Standard_String.hxx
File Standard_String.hxx and methods ISSIMILAR and HASHCODE of TCollection*String classes are removed (to be replaced by strcasecmp).
Functions HashCode for strings reimplemented using DJB2 algorithm for C strings and SDBM algorithm for extended strings.
Adding test cases and draw-command for issue CR11758
Fix misprint added with previous integration
Fix misprint in the test command.
Remove compilation warnings (Linux).
Avoid compiler warning "dereferencing type-punned pointer will break strict-aliasing rules" on Linux
This commit is contained in:
vsr
2013-08-22 11:21:09 +04:00
committed by bugmaster
parent 80cd454f1d
commit 29cb310ae9
18 changed files with 744 additions and 2414 deletions
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9
src/DDataStd/DDataStd_BasicCommands.cxx
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@@ -99,13 +99,6 @@
#include <TColStd_ListIteratorOfListOfInteger.hxx>
#include <TColStd_ListIteratorOfListOfReal.hxx>
#include <Standard_Macro.hxx>
#ifdef OptJr
#define ROUNDMEM(len) (((len)+3)&~0x3)
#else
#define ROUNDMEM(len) (len)
#endif
//=======================================================================
//function : DDataStd_SetInteger
//purpose : SetInteger (DF, entry, value)
@@ -1128,7 +1121,7 @@ static Standard_Integer DDataStd_GetUTFtoFile (Draw_Interpretor& di,
unsigned char prefix[4] = {0xEF,0xBB,0xBF, 0x00};
anOS.write( (char*)&prefix[0], 3);
Standard_Integer n = aES.LengthOfCString();
Standard_PCharacter aCstr = (Standard_PCharacter) Standard::Allocate(ROUNDMEM(n+1));
Standard_PCharacter aCstr = (Standard_PCharacter) Standard::Allocate(n+1);
n = aES.ToUTF8CString(aCstr);
anOS.write( (char*)&aCstr[0], n);
anOS.close();