support float arguments in subopt helper.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@16721 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 19 insertions, 0 deletions

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 )
 {