Although many common implementations use a two's complement representation of signed integers, the C99 standard declares this as implementation-defined, and allows all of the following representations:

• Sign and magnitude
• Two's complement
• Ones' complement

Noncompliant Code Example

Compliant Solution

Risk Assessment

References

\[[ISO/IEC 9899:1999|AA. C References#ISO/IEC 9899-1999]\] Section 6.2.6.2