《C Programming》TEST PAPER

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1、《CProgramming》TESTPAPERTime:8:30-10:30am.June20,2003Importantnote:youranswersmustbewrittenontheanswersheet Section1:SingleChoice（1markforeachitem,total10marks）1.1.       Theprecedenceofoperator_____isthelowestone.A．<

2、．1.03.3.       Theexpression!(x>0

3、

4、y>0)isequivalentto_____.A．!(x>0)&&!(y>0)B．!x>0&&!y>0C．!x>0

5、

6、!y>0D．!(x>0)

7、

8、!(y>0)4.4.       Thevalueofexpression______isn’t0。A．1/2B．!’’C．!EOFD．NULL5.5.       Ifxisafloatvariable,thevalueofexpression(x=10/4)is_____。A．2.5B．2.0C．3D．26.6.       Ifvariablesaredefine

9、dandassignedcorrectly,theexpression______iswrong.A．a&bB．a^bC．&&xD．a,b7.7.       Accordingtothedeclaration:inta[10],*p=a;theexpression______iswrong.A．a[9]B．p[5]C．*p++D．a++8.8.       ______iswrong.A．charstr[10];str="string";B．charstr[]="string";C．char*p="string";D．char*p;p="string";9.9.       Ifall

10、variableshavebeendefinedanddeclaredinthefollowingprogram,allthevariableswhichcanbeusedinfunctionfun()are______.#includevoidfun(intx){staticinty;……return;}intz;voidmain(){inta,b;fun(a);……}A．x,yB．x,y,zC．a,b,y,zD．a,b,x,y,z10.10.   Accordingtothedeclaration:intp[5],*a[5];theexpression______i

11、scorrect.A．p=aB．p[0]=aC．*(a+1)=pD．a[0]=2 Section2:Fillintheblanks（2markforeachitem,total30marks）1.1.       Accordingtothedeclaration:inta[2][3][4]，thenumberofelementsofarrayais_____.2.2.       Writingconditionalexpression______tocalculatethevalueofy.1x>0y=0x=0-1x<03.3.       Thevalueofexpression1

12、<10<5is_____.4.4.       Thevalueofexpression~(10<<1)&4is______.5.5.       Thevalueofexpressionsizeof(“hello”)is______.6.6.       Theoutputofthefollowingstatementsis_____.intk,s;for(k=1,s=0;k<10;k++){if(k%2==0)continue;s+=k;}printf("k=%ds=%d",k,s);1.7.       Theoutputofthefollowingstatementsis____

13、_.#defineMM(x,y)(x*y)printf("%d",MM(2+3,15));2.8.       Theoutputofthefollowingstatementsis_____.intk=1,s=0;switch(k){case1:s+=10;case2:s+=20;break;default:s+=3;}printf("k=%ds=%d",k,s);3.9.       Theoutputofthefollowin