Question
1: #ifdef
2: #if
3: #elif
4: #undef
a.
1, 2
b.
4
c.
1, 2, 4
d.
1, 2, 3, 4
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Q. Which of the following are correct preprocessor directives in C? 1: #ifdef 2: #if 3: #elif 4: #undef
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