From 326361b18e368e11f08c9ac1f05c4fc6d514f76e Mon Sep 17 00:00:00 2001
From: joey <joey@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Mon, 10 Oct 2005 12:56:44 +0000
Subject: support float arguments in subopt helper.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@16721 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 subopt-helper.c | 19 +++++++++++++++++++
 subopt-helper.h |  1 +
 2 files changed, 20 insertions(+)

diff --git a/subopt-helper.c b/subopt-helper.c
index 0cf2299899..9a7332dc13 100644
--- a/subopt-helper.c
+++ b/subopt-helper.c
@@ -32,6 +32,7 @@
 /* prototypes for argument parsing */
 static char const * parse_int( char const * const str, int * const valp );
 static char const * parse_str( char const * const str, strarg_t * const valp );
+static char const * parse_float( char const * const str, float * const valp );
 
 /**
  * \brief Try to parse all options in str and fail if it was not possible.
@@ -162,6 +163,10 @@ int subopt_parse( char const * const str, opt_t * opts )
                   }
                   break;
                 }
+              case OPT_ARG_FLOAT:
+                last = parse_float( &str[parse_pos],
+                                  (float *)opts[idx].valp );
+                break;
               default:
                 assert( 0 && "Arg type of suboption doesn't exist!" );
                 last = NULL; // break parsing!
@@ -247,6 +252,20 @@ static char const * parse_int( char const * const str, int * const valp )
   return endp;
 }
 
+static char const * parse_float( char const * const str, float * const valp )
+{
+  char * endp;
+
+  assert( str && "parse_float(): str == NULL" );
+
+  *valp = strtof( str, &endp );
+
+  /* nothing was converted */
+  if ( str == endp ) { return NULL; }
+
+  return endp;
+}
+
 #define QUOTE_CHAR '%'
 static char const * parse_str( char const * str, strarg_t * const valp )
 {
diff --git a/subopt-helper.h b/subopt-helper.h
index 37ea6d6790..29e7461b9c 100644
--- a/subopt-helper.h
+++ b/subopt-helper.h
@@ -13,6 +13,7 @@
 #define OPT_ARG_INT  1
 #define OPT_ARG_STR  2
 #define OPT_ARG_MSTRZ 3 ///< A malloced, zero terminated string, use free()!
+#define OPT_ARG_FLOAT 4
 
 typedef int (*opt_test_f)(void *);
 
-- 
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