Example: ptraddr0.c

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    #include <inttypes.h>
    #include <stdio.h>
    
    int main()
    {
        int is_unsigned = ((ptraddr_t) -1 > 0);
        fprintf(stderr,"ptraddr_t is %s\n", is_unsigned ? "unsigned":"signed");
    }

Experimental data (what does this mean?)

gcc-morello-O0
gcc-morello-O3
clang-morello-O0-bounds-conservative
clang-morello-O3-bounds-conservative
clang-morello-O0-bounds-references-only
clang-morello-O0-bounds-subobject-safe
clang-morello-O3-bounds-subobject-safe
clang-morello-O0-bounds-aggressive
clang-morello-O0-bounds-very-aggressive
clang-morello-O0-bounds-everywhere-unsafe
clang-riscv-O0-bounds-conservative
clang-riscv-O3-bounds-conservative
clang-riscv-O0-bounds-references-only
clang-riscv-O0-bounds-subobject-safe
clang-riscv-O3-bounds-subobject-safe
clang-riscv-O0-bounds-aggressive
clang-riscv-O0-bounds-very-aggressive
clang-riscv-O0-bounds-everywhere-unsafe
cerberus-cheri
cerberus-cheri-no-pnvi
cerberus-cheri-revocation
cerberus-cheri-revocation-no-pnvi
cerberus-cheri-cornucopia
cerberus-cheri-cornucopia-no-pnvi
 
ptraddr_t is unsigned