showrec.c

一个用C编写的简单的关系数据库系统

void ShowRec(FILE * fp, DBF * dbf_name, RecUnion * recIn)
{
	int q = 0;
	for (; q<dbf_name->dhFieldCount; q++)
	{
		switch (dbf_name->dbf_struct[q].dhFieldType) {
		case Int:
			fread(recIn,sizeof(int),1,fp);
			printf("	%d	",recIn->intType);
			break;
		case Float:
			fread(recIn,sizeof(float),1,fp);
			printf("	%.4f	",recIn->floatType);
			break;
		case String:
			recIn->string = (char *)malloc(dbf_name->dbf_struct[q].dhFieldLen * sizeof(char));
			fread(recIn->string,dbf_name->dbf_struct[q].dhFieldLen,1,fp);
			printf("	%s	",recIn->string);
			break;
		default:
			break;
		}
	}
	puts("");
	return;
}