39 lines
812 B
Markdown
39 lines
812 B
Markdown
> **12.** Suppose that the macro `M` has been defined as follows:
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```c
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#define M 10
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```
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> Which of the following tests will fail?
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```c
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// C will fail, because `M` is defined.
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#ifndef M
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// E will fail, because `M` is defined
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#if !defined(M)
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```
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---
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> **13.** Show what the following program will look like after preprocessing. You may ignore any lines added to the program as a result of including the `<stdio.h>` header.
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```c
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#include <stdio.h>
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int main(void)
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{
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f();
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}
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void f(void) {
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printf("N is %d\n", 100);
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}
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```
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---
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> **15.** Suppose that a program needs to display messages in either English, French, or Spanish. Using conditional compilation, write a program fragment that displays one of the following three messages, depending on whether or not the specified macro is defined.
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```c
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``` |