about "-Wshorten-64-to-32: warn on 64 bits truncation (long to int for example)"

airbus-seclab / c-compiler-security

Security-related flags and options for C compilers

https://airbus-seclab.github.io/c-compiler-security/

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about "-Wshorten-64-to-32: warn on 64 bits truncation (long to int for example)" #8

Closed szennou closed 3 years ago

szennou commented 3 years ago

C norm specifies that sizeof(long) >= sizeof(int). Note the ">=". I suggest to either remove your example or add "on architectures where sizeof(long) < sizeof(int)"