[GitHub] [incubator-nuttx] minabeoki opened a new pull request, #6139: libc/string: strcmp/strncmp cast unsigned char

[GitBox <gi...@apache.org>]

minabeoki opened a new pull request, #6139:
URL: https://github.com/apache/incubator-nuttx/pull/6139

   ## Summary
   - Cast to unsigned char for strcmp and strncmp
   - strcmp and strncmp are described following by opengroup.org
   
   >  The sign of a non-zero return value shall be determined by the sign
   >  of the difference between the values of the first pair of bytes
   >  (both interpreted as type **unsigned char**) that differ in the strings
   >  being compared.
   
     https://pubs.opengroup.org/onlinepubs/9699919799/functions/strcmp.html
     https://pubs.opengroup.org/onlinepubs/9699919799/functions/strncmp.html
   
   ## Impact
   - strcmp and strncmp return value
   
   ## Testing
   - ostest on sabre-6quad:smp w/ qemu
   


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[GitHub] [incubator-nuttx] pkarashchenko merged pull request #6139: libc/string: strcmp/strncmp cast unsigned char

[GitBox <gi...@apache.org>]

pkarashchenko merged PR #6139:
URL: https://github.com/apache/incubator-nuttx/pull/6139


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