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Values stored in \[...\] objects of type unsigned char shall be represented using a pure binary notation.

where Where a pure binary notation is defined as the following:

A positional representation for integers that uses the binary digits 0 and 1, in which the values represented by successive bits are additive, begin with 1, and are multiplied by successive integral powers of 2, except perhaps the bit with the highest position. A byte contains CHAR_BIT bits, and the values of type unsigned char range from 0 to 2 ^{CHAR_BIT - 1} .

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Search for vulnerabilities resulting from the violation of this rule on the CERT website.

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Related Guidelines

This rule appears in the C++ Secure Coding Standard as : STR00-CPP. Represent characters using an appropriate type.

Bibliography

\[[ISO/IEC TR 24731-1:2007|AA. Bibliography#ISO/IEC TR 24731-1-2007]\]
\[[ISO/IEC 9899:1999|AA. Bibliography#ISO/IEC 9899-1999]\] Section 7.1.1, "Definitions of terms," and Section 7.21, "String handling <{{string.h}}>"
\[[Seacord 05a2005a|AA. Bibliography#Seacord 05a]\] Chapter 2, "Strings"

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