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| -rw-r--r-- | include/stddef.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/stddef.h b/include/stddef.h index c2a806b..8330da4 100644 --- a/include/stddef.h +++ b/include/stddef.h @@ -42,6 +42,16 @@ * but excessive use of C++, and especially it * features, is harmful too. * + * Strictly speaking, to deference `NULL` is not an + * illegal action, but the operating system will + * kill you with `SIGSEGV` (segmentation fault or + * acess violation), and makes your you have no reason + * to my never mapping any memory there. However, the + * operating system itself, and programs running + * before the operating system, that is, any program + * not abstracted away from the hardware by virtual + * memory, have use of the address 0. + * * @etymology Pointer with numerical value (0). * * @since Always. |