#define _GNU_SOURCE /* for asprintf */
#include <stdlib.h> /* for free and system */
#include <string.h> /* for __FILE__ */
#include <stdio.h>
#define str(s) #s
#define xstr(s) str(s)
#define FT(s) int main() { char *before = "#define _GNU_SOURCE /* for asprintf */\n#include <stdlib.h> /* for free and system */\n#include <string.h> /* for __FILE__ */\n#include <stdio.h>\n#define str(s) #s\n#define xstr(s) str(s)\n#define FT(s) "; char *quine = s; char *after = "\nint i = %i;\nchar *file_name = __FILE__;\nFT(xstr(FT(s)))\n"; if ((strchr(file_name, '_')) != ((void*)0)) i--;char kid_name_c[42]; char after_expanded[42]; char cmd[42]; sprintf(kid_name_c, "Sully_%i.c", i); FILE *file = fopen(kid_name_c, "w"); sprintf(after_expanded, after, i); fprintf(file, "%s%s%s", before, quine, after_expanded); fclose(file); sprintf(cmd, "clang Sully_%1$i.c -o Sully_%1$i", i); system(cmd); if (i > 0) { sprintf(cmd, "./Sully_%i", i); system(cmd); } return 0; }
int i = 5;
char *file_name = __FILE__;
FT(xstr(FT(s)))