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Code Block
bgColor #ccccff lang c
#include <stdio.h>   for (int i = 0; i < 10; ++i) { printf("i is %d", i); }

Exceptions

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MSC07MSC12-EX1MSC07 MSC12-EX1

MSC07-CMSC12-EX1: In some situations, seemingly dead code may make software resilient. An example is the default label in a switch statement whose controlling expression has an enumerated type and that specifies labels for all enumerations of the type. (See MSC01-C. Strive for logical completeness.) Because valid values of an enumerated type include all those of its underlying integer type, unless enumeration constants are provided for all those values, the default label is appropriate and necessary.

Code Block
bgColor #ccccff lang c
typedef enum { Red, Green, Blue } Color; const char* f(Color c) { switch (c) { case Red: return "Red"; case Green: return "Green"; case Blue: return "Blue"; default: return "Unknown color"; /* Not dead code */ } } void g() { Color unknown = (Color)123; puts(f(unknown)); }

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MSC07MSC12-EX2MSC07 MSC12-EX2

MSC07-CMSC12-EX2: It is permissible to temporarily remove code that may be needed later. (See MSC04-C. Use comments consistently and in a readable fashion for an illustration.)

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