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並前往https://stackoverflow.com/questions/69409047/why-is-getopts-optarg-variable-zero-during-debugging

Why is getopt's optarg variable zero during debugging?

I figured out (with tabbing) that I can see the actual value with p (char*)'optarg@GLIBC_2.2.5' $6 = 0x7fffffffea99 "foo". I found two posts ...

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