1 files changed, 115 insertions, 0 deletions
diff --git a/inc/utility.h b/inc/utility.h
new file mode 100644
index 0000000..c8844e8
--- /dev/null
+++ b/inc/utility.h
@@ -0,0 +1,115 @@
+#ifndef   __utility_h__
+#define   __utility_h__
+
+#include <stddef.h>
+
+/**********************************************************/
+/* This object contain some useful functions,  constants  */
+/* and types.                                             */
+/*   Enums:                                               */
+/*     ErrorType    contain kinds of errors.              */
+/*                                                        */
+/*   Structures:                                          */
+/*                                                        */
+/*   Types:                                               */
+/*     uint         unsigned int                          */
+/*     pchar        char*                                 */
+/*     ppchar       char**                                */
+/*     pvoid        void*                                 */
+/*     ppvoid       void**                                */
+/*     cchar        const char                            */
+/*     pcchar       (const char)*                         */
+/*     ppcchar      (const char)**                        */
+/*     cvoid        const void                            */
+/*     pcvoid       (cosnt void)*                         */
+/*     ppcvoid      (const void)**                        */
+/*     ... etc                                            */
+/*                                                        */
+/*  Type transform:                                       */
+/*    Char(), pChar(), ppChar()                           */
+/*    Void(), pVoid(), ppVoid()                           */
+/*    cChar(), pcChar(), ppcChar()                        */
+/*    cVoid(), pcVoid(), ppcVoid()                        */
+/*    ... etc                                             */
+/*                                                        */
+/*  Functions:                                            */
+/*     ctl_malloc   like malloc(), but will exit on error */
+/*     ctl_realloc  like realloc(), but will exit on erro */
+/*     ctl_free     like free(), but will return NULL     */
+/*     ctl_die      print some message and exit()         */
+/*     ctl_swap     swap two elements with given type     */
+/*     ctl_max      return the max of the two arguments   */
+/*     ctl_min      return the min of the two arguments   */
+/*                                                        */
+/**********************************************************/
+
+typedef enum{
+    CTL_MEMORY = 0x01,
+    CTL_USER   = 0x02
+} ErrorType;
+
+//                         int 
+typedef          int*     pint;
+typedef unsigned int      uint;
+typedef         uint*    puint;
+typedef    const int      cint;
+typedef         cint*    pcint;
+typedef   const uint     cuint;
+typedef        cuint*   pcuint;
+#define    Int(X) ((   int)(X))
+#define   pInt(X) ((  pint)(X))
+#define   uInt(X) ((  uint)(X))
+#define  puInt(X) (( puint)(X))
+#define   cInt(X) ((  cint)(X))
+#define  pcInt(X) (( pcint)(X))
+#define  cuInt(X) (( cuint)(X))
+#define pcuInt(X) ((pcuint)(X))
+
+//                        void 
+typedef         void*    pvoid;
+typedef        pvoid*   ppvoid;
+typedef   const void     cvoid;
+typedef        cvoid*   pcvoid;
+typedef       pcvoid*  ppcvoid;
+#define    Void(X) ((   void)(X))
+#define   pVoid(X) ((  pvoid)(X))
+#define  ppVoid(X) (( ppvoid)(X))
+#define   cVoid(X) ((  cvoid)(X))
+#define  pcVoid(X) (( pcvoid)(X))
+#define ppcVoid(X) ((ppcvoid)(X))
+
+//                         char 
+typedef          char*    pchar;
+typedef         pchar*   ppchar;
+typedef unsigned char     uchar;
+typedef         uchar*   puchar;
+typedef        puchar*  ppuchar;
+typedef    const char     cchar;
+typedef         cchar*   pcchar;
+typedef        pcchar*  ppcchar;
+typedef   const uchar    cuchar;
+typedef        cuchar*  pcuchar;
+typedef       pcuchar* ppcuchar;
+#define     Char(X) ((    char)(X))
+#define    pChar(X) ((   pchar)(X))
+#define   ppChar(X) ((  ppchar)(X))
+#define    uChar(X) ((   uchar)(X))
+#define   puChar(X) ((  puchar)(X))
+#define  ppuChar(X) (( ppuchar)(X))
+#define    cChar(X) ((   cchar)(X))
+#define   pcChar(X) ((  pcchar)(X))
+#define  ppcChar(X) (( ppcchar)(X))
+#define   cuChar(X) ((  cuchar)(X))
+#define  pcuChar(X) (( pcuchar)(X))
+#define ppcuChar(X) ((ppcuchar)(X))
+
+pvoid ctl_malloc (size_t size);
+pvoid ctl_realloc(pvoid ptr, size_t size);
+pvoid ctl_free   (pvoid ptr);
+void  ctl_die    (ErrorType e);
+
+#define ctl_swap(X,Y,Z) do{X zzzztmp=(Y);(Y)=(Z);(Z)=zzzztmp;}while(0)
+#define ctl_max(X,Y)    ((X) > (Y) ? (X) : (Y))
+#define ctl_min(X,Y)    ((X) < (Y) ? (X) : (Y))
+
+#endif /* __utility_h__ */