extern struct InstrSeq *FuncDec(char *name, struct InstrSeq *code)
{
char nname[100];
snprintf(nname, 100, "_%s", name);
struct InstrSeq *fcode;
fcode = GenInstr(nname, NULL, NULL, NULL, NULL);
fcode = AppendSeq(fcode, code);
fcode = AppendSeq(fcode, GenInstr(NULL, "jr", "$ra", NULL, NULL));
DestroySymTab(locTable);
locTable = NULL;
return fcode;
}
int
main(int argc, char * argv[])
{ char *testFileName;
FILE *fd;
struct SymTab *theTable, *firstCopy, *secondCopy;
struct SymEntry *anEntry;
struct Attributes *anAttr;
char buffer[16];
int val1, val2;
if (argc != 2) {
fprintf(stderr,"usage: SymTabDriver test-data-file\n");
exit(1);
}
testFileName = argv[1];
fd = fopen(testFileName,"r");
if (!fd) ErrorExit("Can't open input file.\n");
if (!(theTable = CreateSymTab(5))) ErrorExit("Failed to alloc first table.\n");
/* Read lines consisting of a name string and an integer from std input.
If name already present increment value2, if new allocate storage
for attribute structure and fill in fields.
*/
while (fscanf(fd,"%15s %d",buffer,&val1) != EOF) {
printf("Find: %15s ",buffer);
(FindName(theTable,buffer)) ? fprintf(stdout," Present -")
: fprintf(stdout," Not Present -");
if (EnterName(theTable,buffer,&anEntry)) {
fprintf(stdout," Enter: Present: %15s\n",GetName(anEntry));
anAttr = (struct Attributes *) GetAttr(anEntry);
anAttr->value2++;
anAttr->value1 = MAX(((struct Attributes *) GetAttr(anEntry))->value1,val1);
}
else {
fprintf(stdout," Enter: Entered: %15s\n",GetName(anEntry));
anAttr = malloc(sizeof(struct Attributes));
anAttr->value1 = val1;
anAttr->value2 = 1;
SetAttr(anEntry,anAttr);
}
}
fprintf(stdout,"\nContents of Original Table\n");
DisplayTable(theTable);
DisplayStatistics(theTable);
if (!(firstCopy = CopyTable(theTable,1))) ErrorExit("Failed to alloc first copy table.\n");
DestroySymTab(theTable);
fprintf(stdout,"\nContents of First Copy Table\n");
DisplayTable(firstCopy);
DisplayStatistics(firstCopy);
if (!(secondCopy = CopyTable(firstCopy,100))) ErrorExit("Failed to alloc first copy table.\n");
DestroySymTab(firstCopy);
fprintf(stdout,"\nContents of Second Copy Table\n");
DisplayTable(secondCopy);
DisplayStatistics(secondCopy);
VerifyCounts(secondCopy);
FreeAllAttr(secondCopy);
DestroySymTab(secondCopy);
return 0;
}
