The code below I'm using Posix C:
while ((opt = getopt(argc, argv, "a:p:h")) != -1)
How can I port this code to Windows C++ using an alternative function?
Thanks
The code below I'm using Posix C:
while ((opt = getopt(argc, argv, "a:p:h")) != -1)
How can I port this code to Windows C++ using an alternative function?
Thanks
Microsoft has provided a nice implementation (as well as some other helpers) inside the open source IoTivity project here you could possibly re-use (pending any licensing requirements you may have):
Take a look at the "src" and "include" directories here for "getopt.h/.c".
https://github.com/iotivity/iotivity/tree/master/resource/c_common/windows
If you had searched you would have found another thread that goes over some compatibility libraries for getopt, among other implementations, for Windows based systems.
getopt.h: Compiling Linux C-Code in Windows
On another note, you could always use the va_arg, va_list, va_start, and va_end functions to process arguments as well.
/* va_arg example */
#include <stdio.h> /* printf */
#include <stdarg.h> /* va_list, va_start, va_arg, va_end */
int FindMax (int n, ...)
{
int i,val,largest;
va_list vl;
va_start(vl,n);
largest=va_arg(vl,int);
for (i=1;i<n;i++)
{
val=va_arg(vl,int);
largest=(largest>val)?largest:val;
}
va_end(vl);
return largest;
}
int main ()
{
int m;
m= FindMax (7,702,422,631,834,892,104,772);
printf ("The largest value is: %d\n",m);
return 0;
}
Reference: http://www.cplusplus.com/reference/cstdarg/va_list/