A Problem on `va_list` in C Language
What’s the output of the following codes? And Why? #include <stdio.h>int main(int argc, char *argv[]) { printf("%#018llx\n", (char)0x80); printf("%#018llx\n", (unsigned char)0x80); return 0; } (You might encounter warnings informing you of the inconsistency between the specified format and the given arguments. Let’s neglect them.) The answer is 0x00000000ffffff80 0x0000000000000080 Questions We have two questions: Is it overloading that contributes to different behaviors when different types of arguments are passed. Why is the first output 0x00000000ffffff80 instead of 0xffffffffffffff80?...