bulk upload of source

1 files changed, 8 insertions, 0 deletions

diff --git a/check_opt.h b/check_opt.h
new file mode 100644
index 0000000..610edd8
--- /dev/null
+++ b/check_opt.h
@@ -0,0 +1,8 @@
+static int check_opt(char **argv, char **opt) {
+  if (argv[0][2]) { *opt = argv[0]+2; return 0; }
+  else if (argv[1]) { *opt = argv[1]; return 1; }
+  carp("Option ",argv[0]," requires an argument");
+  _exit(1);
+}
+
+#define chk_opt(argv,opt) argv+=check_opt(argv,&opt)