SEI CERT C Coding Standard

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changes.mady.by.user Osona Steave

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Code Block
bgColor#ccccff
#define assign(ucn, val) ucn = val;

int \U00010401\U00010401\U00010401\U00010402;
assign(\U00010401\U00010401\U00010401\U00010402, 4);

Examples of vulnerabilities resulting from the violation of this rule can be found on the
CERT website.

...

Risk Assessment

Creating a universal character name through token concatenation will result in undefined behavior.

Rule

Severity

Likelihood

Remediation Cost

Priority

Level

PRE30-C

1 (low)

1 (unlikely)

1 (low)

P1

L3

Examples of vulnerabilities resulting from the violation of this rule can be found on the CERT website.

References

Wiki Markup
\[[ISO/IEC 9899-1999|AA. C References#ISO/IEC 9899-1999]] Section 5.1.1.2, "Translation phases," Section 6.4.3, "Universal character names," and Section 6.10.3.3, "The ## operator"