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Document that Unspecified options should initialize to -1 #238

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3 changes: 3 additions & 0 deletions Documentation/CodingGuidelines
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Expand Up @@ -198,6 +198,9 @@ For C programs:
including old ones. That means that you should not use C99
initializers, even if a lot of compilers grok it.

- the convention is to use -1 for unspecified values of command-line
options of config settings.

- Variables have to be declared at the beginning of the block.

- NULL pointers shall be written as NULL, not as 0.
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