perflab added

profile/options.h

@@ -0,0 +1,28 @@
+/*
+ * Code to process options from
+ * command line arguments.  Arguments can be integers,
+ * floats, or strings.   Allow prefix of argument name, as long as
+ * unambigous.  Also support printing of usage information.
+ */
+
+#include <stdio.h>
+
+void add_int_option(char *name, int *var);
+void add_double_option(char *name, double *var);
+void add_string_option(char *name, char **var);
+
+/* Print usage information and exit */
+void usage(char *prog);
+
+/*
+ * Parse option from arguments.  Print error message & exit if any problems
+ * If otherargs nonnull, fill it with any nonoption arguments.
+ * Return number of such arguments.
+ */
+int parse_options(int argc, char *argv[], char *otherargs[]);
+
+/* Parse options from file */
+void parse_option_file(char *prog, FILE *option_file);
+
+/* Show which options are in effect */
+void show_options(FILE *outfile);