CrystalSpace

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csutil/util.h

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00001 /*
00002     Copyright (C) 1998 by Jorrit Tyberghein
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public
00015     License along with this library; if not, write to the Free
00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __CS_UTIL_H__
00020 #define __CS_UTIL_H__
00021 
00022 #include <stdio.h>
00023 #include "csextern.h"
00024 #include "csutil/csunicode.h"
00025 
00040 CS_CRYSTALSPACE_EXPORT char *csStrNew (const char *s);
00046 CS_CRYSTALSPACE_EXPORT char *csStrNew (const wchar_t *s);
00052 CS_CRYSTALSPACE_EXPORT wchar_t* csStrNewW (const wchar_t *s);
00058 CS_CRYSTALSPACE_EXPORT wchar_t* csStrNewW (const char *s);
00059 
00060 namespace CS
00061 {
00070   CS_CRYSTALSPACE_EXPORT char* StrDup (const char *s);
00076   CS_CRYSTALSPACE_EXPORT char* StrDup (const wchar_t *s);
00082   CS_CRYSTALSPACE_EXPORT wchar_t* StrDupW (const wchar_t *s);
00088   CS_CRYSTALSPACE_EXPORT wchar_t* StrDupW (const char *s);
00089 }
00090 
00097 CS_CRYSTALSPACE_EXPORT int csStrCaseCmp(char const* str1, char const* str2);
00098 
00106 CS_CRYSTALSPACE_EXPORT int csStrNCaseCmp(char const* str1, char const* str2,
00107   size_t n);
00108 
00122 struct csWtoC
00123 {
00124 private:
00125   char* s;
00126 public:
00131   csWtoC (const wchar_t* ws)
00132   { s = csStrNew (ws); }
00136   ~csWtoC ()
00137   { delete[] s; }
00141   operator const char* () const
00142   { return s; }
00143 };
00144 
00152 struct csCtoW
00153 {
00154 private:
00155   wchar_t* ws;
00156 public:
00161   csCtoW (const char* s)
00162   { ws = csStrNewW (s); }
00166   ~csCtoW ()
00167   { delete[] ws; }
00171   operator const wchar_t* () const
00172   { return ws; }
00173 };
00174 
00184 CS_CRYSTALSPACE_EXPORT char *csExpandName (const char *iName);
00185 
00189 CS_CRYSTALSPACE_EXPORT void csSplitPath (const char *iPathName, char *oPath,
00190   size_t iPathSize, char *oName, size_t iNameSize);
00191 
00200 CS_CRYSTALSPACE_EXPORT bool csGlobMatches (const char *fName,
00201         const char *fMask);
00202 
00207 static inline int csFindNearestPowerOf2 (int n)
00208 {
00209   int v=n;
00210 
00211   v--;
00212   v |= v >> 1;
00213   v |= v >> 2;
00214   v |= v >> 4;
00215   v |= v >> 8;
00216   v |= v >> 16;
00217   v++;
00218 
00219   return v;
00220 }
00221 
00223 static inline bool csIsPowerOf2 (int n)
00224 {
00225   return !(n & (n - 1)) && n;   // (n-1) ^ n >= n;
00226 }
00227 
00229 CS_CRYSTALSPACE_EXPORT int csLog2 (int n);
00230 
00236 CS_CRYSTALSPACE_EXPORT void csReplaceAll (char *dest, const char *src,
00237   const char *search, const char *replace, int max);
00238 
00239 
00242 #endif // __CS_UTIL_H__

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