1 /* 2 * 3 * SOFTWARE RIGHTS 4 * 5 * We reserve no LEGAL rights to the Purdue Compiler Construction Tool 6 * Set (PCCTS) -- PCCTS is in the public domain. An individual or 7 * company may do whatever they wish with source code distributed with 8 * PCCTS or the code generated by PCCTS, including the incorporation of 9 * PCCTS, or its output, into commerical software. 10 * 11 * We encourage users to develop software with PCCTS. However, we do ask 12 * that credit is given to us for developing PCCTS. By "credit", 13 * we mean that if you incorporate our source code into one of your 14 * programs (commercial product, research project, or otherwise) that you 15 * acknowledge this fact somewhere in the documentation, research report, 16 * etc... If you like PCCTS and have developed a nice tool with the 17 * output, please mention that you developed it using PCCTS. In 18 * addition, we ask that this header remain intact in our source code. 19 * As long as these guidelines are kept, we expect to continue enhancing 20 * this system and expect to make other tools available as they are 21 * completed. 22 * 23 * ANTLR 1.33 24 * Terence Parr 25 * Parr Research Corporation 26 * with Purdue University and AHPCRC, University of Minnesota 27 * 1989-1998 28 */ 29 30 /* 31 * WARNING!!!!: charptr.h does NOT make copies and the 32 * memory is freed after the attribute scope exits. 33 */ 34 35 #ifndef ZZCHARPTR_H 36 #define ZZCHARPTR_H 37 38 typedef char *Attrib; 39 #define zzdef0(a) {*(a)=NULL;} 40 /* MR8 Jens Tingleff (jensting@imaginet.fr) */ 41 /* Set memory pointer to null after free() */ 42 #define zzd_attr(a) {if ( *(a)!=NULL ) {free(*(a)); *(a)=NULL; }; } 43 44 #ifdef __STDC__ 45 extern zzcr_attr(Attrib *,int,char *); 46 #endif 47 48 #endif 49