You can't compare strings using ==
. Instead, use strcmp
.
#include <string.h>
int main (int argc, char * const argv[]) {
if (strcmp(argv[1], "-d") == 0)
// call some function here
}
The reason for this is that the value of "..."
is a pointer representing the location of the first character in the string, with the rest of the characters after it. When you specify "-d"
in your code, it makes a whole new string in memory. Since the location of the new string and argv[1]
aren't the same, ==
will return 0
.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…