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Annotation of 43BSD/usr.lib/learn/C/L5.1c, revision 1.1

1.1     ! root        1: #print
        !             2: (Section 1.5)
        !             3: Write a program which reads one character from
        !             4: its input; if that character is ? it prints "yes",
        !             5: otherwise it prints "no".
        !             6: Compile it, test it, and then type ready.
        !             7: #once #create Ref1
        !             8: ? is here
        !             9: #once #create Ref2
        !            10: no ? at beginning
        !            11: #user
        !            12: a.out <Ref1 >test1
        !            13: a.out <Ref2 >test2
        !            14: grep yes test1 >/dev/null || grep no test2 >/dev/null
        !            15: #succeed
        !            16: This is one possible solution
        !            17: 
        !            18: main()
        !            19: {
        !            20:        if (getchar() == '?')
        !            21:                printf("yes\n");
        !            22:        else
        !            23:                printf("no\n");
        !            24: }
        !            25: 
        !            26: The indenting and general formatting of C programs
        !            27: should be done so you make the structure clear,
        !            28: like the code above.
        !            29: #log
        !            30: #next
        !            31: 5.1d 10

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