程序　大家来指点(页 1) - C++论坛 - C++ Builder

jianglongyun 发表于 2007-6-1 15:20

程序　大家来指点

这叫什么程序　有没有错误　能够运行吗？ #include "stdio.h" #include "stdlib.h" #include "string.h" #define MAX 32767 typedef struct node { int address,size; struct node *next; }RECT; RECT *assignment(RECT *head,int application); void acceptment1(RECT *head,RECT *back1); void acceptment2(RECT *head,RECT *back1) ; int backcheck(RECT *head,RECT *back1); void print(RECT *head); RECT *head,*back,*assign1,*p; int application1,maxblocknum; char way; /*主函数*/ main() { char choose[10]; int check; head=malloc(sizeof(RECT)); p=malloc(sizeof(RECT)); head->size=MAX; head->address=0; head->next=p; maxblocknum=1; p->size=MAX; p->address=0; p->next=NULL; print(head); printf("Enter the way(best or first(b/f)\n"); scanf("%c",&way); do{ printf("Enter the assign or accept(as/ac)\n"); scanf("%s",choose); /*选择分配或回收*/ if(strcmp(choose,"as")==0) { printf("Input application:\n"); scanf("%d",&application1); assign1=assignment(head,application1); if(assign1->address==-1) printf("Too large application!,assign fails!!\n\n"); else printf("Success!!ADDRESS=%5d\n",assign1->address); print(head); } else if(strcmp(choose,"ac")==0) /*回收*/ { back=malloc(sizeof(RECT)); printf("Input Adress and Size!!\n"); scanf("%d%d",&back->address,&back->size); check=backcheck(head,back); if(check==1) { if(tolower(way)=='f')/*首先适应算法*/ acceptment1(head,back); /*首先适应*/ else acceptment2(head,back);/*最佳适应*/ print(head); } } }while(!strcmp(choose,"as")||!strcmp(choose,"ac")); } /*分配函数*/ RECT *assignment(RECT *head,int application) { RECT *after,*before,*assign; assign=malloc(sizeof(RECT)); assign->size=application; assign->next=NULL; if(application>head->size||application<=0) assign->address=-1; /*申请无效*/ else { before=head; after=head->next; while(after->size<application) { before=before->next; after=after->next; } if(after->size==application) /*结点大小等于申请大小则完全分配*/ { if(after->size==head->size) maxblocknum--; before->next=after->next; assign->address=after->address; free(after); } else { if(after->size==head->size) maxblocknum--; after->size=after->size-application; /*大于申请空间则截取相应大小分配*/ assign->address=after->address+after->size; if(tolower(way)=='b') { before->next=after->next; back=after; acceptment2(head,back); } } if(maxblocknum==0) { before=head; head->size=0; maxblocknum=1; while(before!=NULL) { if(before->size>head->size) { head->size=before->size; maxblocknum=1; } else if(before->size==head->size) maxblocknum++; before=before->next; } } } assign1=assign; return assign1; } void acceptment1(RECT *head,RECT *back1)/*首先适应*/ { RECT *before,*after; int insert; before=head; after=head->next; insert=0; while(!insert) { if((after==NULL)|| ((back1->address<=after->address)&& (back1->address>=before->address))) { before->next=back1; back1->next=after; insert=1; } else { before=before->next; after=after->next; } } if(back1->address==before->address+before->size) { before->size=before->size+back1->size; before->next=back1->next; free(back1); back1=before; } if(after!=NULL&&(after->address==back1->address+back1->size)) { back1->size=back1->size+after->size; back1->next=after->next; free(after); } if(head->size<back1->size) { head->size=back1->size; maxblocknum=1; } else if(head->size==back1->size) maxblocknum++; } /*最佳适应*/ void acceptment2(RECT *head,RECT *back1) { RECT *before,*after; int insert ; insert=0; before=head; after=head->next; if(head->next==NULL) { head->size=back1->size; head->next=back1; maxblocknum++; back1->next=NULL; } else { while(after!=NULL) if(back1->address==after->size+after->address) { before->next=after->next; back->size=after->size+back1->size; free(after); after=NULL; } else { after=after->next; before=before->next; } before=head; after=head->next; while(after!=NULL) if(after->address==back1->size+back1->address) { back1->size=back1->size+after->size; before->next=after->next; free(after); after=NULL; } else { before=before->next; after=after->next; } before=head; after=head->next; do{ if(after==NULL||(after->size>back1->size)) { before->next=back1; back1->next=after; insert=1; } else { before=before->next; after=after->next; } }while(!insert); if(head->size<back1->size) { head->size=back1->size; maxblocknum++; } else if(head->size==back1->size) maxblocknum++; } }
void print(RECT *head) { RECT *before,*after; int index,k; before=head->next; index=1; if(head->next==NULL) printf("NO part for assignment!!\n"); else { printf("*****index*******address********end*********size*****\n"); while(before!=NULL) { printf("----------------------------------------------------\n"); printf(" %-13d%-13d%-13d%-13d\n",index,before->address,before->address+before->size-1,before->size); printf("----------------------------------------------------\n"); index++; before=before->next; } } } int backcheck(RECT *head,RECT *back1) { RECT *before,*after; int check=1; if(back1->address<0||back1->size<0) check=0; before=head->next; while((before!=NULL)&&check) if(((back1->address<before->address) &&(back1->address+back1->size>before->address)) ||((back1->address>=before->address) &&(back1->address<before->address+before->size))) check=0; else before=before->next; if(check==0) printf("Error input!!\n"); return check; }

边城路人 发表于 2007-6-4 09:08

这么长的代码是你写的 还是下的 能不能运行你测试一下就知道了

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程序 大家来指点

程序　大家来指点