git.sur5r.net Git - cc65/blob - src/common/gentype.c

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                 gentype.c                                 */
   4 /*                                                                           */
   5 /*                        Generic data type encoding                         */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2011,      Ullrich von Bassewitz                                      */
  10 /*                Roemerstrasse 52                                           */
  11 /*                D-70794 Filderstadt                                        */
  12 /* EMail:         uz@cc65.org                                                */
  13 /*                                                                           */
  14 /*                                                                           */
  15 /* This software is provided 'as-is', without any expressed or implied       */
  16 /* warranty.  In no event will the authors be held liable for any damages    */
  17 /* arising from the use of this software.                                    */
  18 /*                                                                           */
  19 /* Permission is granted to anyone to use this software for any purpose,     */
  20 /* including commercial applications, and to alter it and redistribute it    */
  21 /* freely, subject to the following restrictions:                            */
  22 /*                                                                           */
  23 /* 1. The origin of this software must not be misrepresented; you must not   */
  24 /*    claim that you wrote the original software. If you use this software   */
  25 /*    in a product, an acknowledgment in the product documentation would be  */
  26 /*    appreciated but is not required.                                       */
  27 /* 2. Altered source versions must be plainly marked as such, and must not   */
  28 /*    be misrepresented as being the original software.                      */
  29 /* 3. This notice may not be removed or altered from any source              */
  30 /*    distribution.                                                          */
  31 /*                                                                           */
  32 /*****************************************************************************/
  33
  34
  35
  36 /* common */
  37 #include "gentype.h"
  38 #include "strbuf.h"
  39 #include "xmalloc.h"
  40
  41
  42
  43 /*****************************************************************************/
  44 /*                                   Code                                    */
  45 /*****************************************************************************/
  46
  47
  48
  49 gt_string GT_FromStrBuf (const struct StrBuf* S)
  50 /* Create a dynamically allocated type string from a string buffer. */
  51 {
  52     /* To avoid silly mistakes, check if the last character in S is a
  53      * terminator. If not, don't rely on S being terminated.
  54      */
  55     unsigned Len = SB_GetLen (S);
  56     if (Len > 0 && SB_LookAtLast (S) == '\0') {
  57         /* String is terminated - allocate memory */
  58         gt_string Type = xmalloc (Len);
  59         /* Copy the data and return the result */
  60         return memcpy (Type, SB_GetConstBuf (S), Len);
  61     } else {
  62         /* String not terminated - allocate memory */
  63         gt_string Type = xmalloc (Len + 1);
  64         /* Copy the data */
  65         memcpy (Type, SB_GetConstBuf (S), Len);
  66         /* Terminate the string */
  67         Type[Len] = GT_END;
  68         /* Return the copy */
  69         return Type;
  70     }
  71 }
  72
  73
  74