1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | #include <stdio.h>
#include <stdlib.h>
typedef unsigned char uchar;
void write_file(char const* filename, uchar const* contents) {
FILE* fp = fopen(filename, "w");
for(int i = 0; contents[i] != '\0'; i++) {
uchar char_to_write = contents[i];
fputc(char_to_write, fp); // write one character
}
fclose(fp);
}
int main(int argc, char* argv[]) {
uchar const contents[] = { '\xde', '\xca', '\xf0', 'B' };
// '\xde' ⇒ 0xde ⇒ 11011110
// └──┘└──┘
// d e
//
// '\xca' ⇒ 0xca ⇒ 11001010
// └──┘└──┘
// c a
//
// '\xf0' ⇒ 0xf0 ⇒ 11110000
// └──┘└──┘
// f 0
//
// 'B' ⇒ 66 (might be helpful to remember that 'A' ↔ 65 ↔ 0x41
// ⇒ 0x42 ⇒ 01000010
// └──┘└──┘
// 4 2
write_file("quiz4.txt", contents);
return EXIT_SUCCESS;
}
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