expression.c

   1 #include "common.h"
   2
   3 /*
   4 * expression.c  --manage expressions
   5 *
   6 * Copyright(C) 2013(Heisei 25) ttwilb All rights reserved.
   7 *
   8 * This source code is released on the BSD licensing.
   9 *
  10 */
  11
  12 #define EXPRESSION_BUF_MAX      100
  13
  14 struct Expression expression_buf[EXPRESSION_BUF_MAX];
  15 int expression_buf_count = 0;
  16
  17 struct Expression* alloc_expression()
  18 {
  19         if(!expression_buf_count >= EXPRESSION_BUF_MAX)
  20         {
  21                 return &expression_buf[expression_buf_count++];
  22         }else
  23         {
  24                 printf("----Fatal: expression allocation error");
  25                 return (struct Expression *) 0;
  26         }
  27 }