Add config to enable floating point support

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2542 42af7a65-404d-4744-a932-0658087f49c3

2 files changed, 8 insertions, 5 deletions

diff --git a/nuttx/lib/lib_libvsprintf.c b/nuttx/lib/lib_libvsprintf.c
index dff001545..1d28c1a6c 100644
--- a/nuttx/lib/lib_libvsprintf.c
+++ b/nuttx/lib/lib_libvsprintf.c
@@ -1465,12 +1465,14 @@ int lib_vsprintf(FAR struct lib_outstream_s *obj, const char *src, va_list ap)
 
       /* Handle floating point conversions */
 
+#ifdef CONFIG_LIBC_FLOATINGPOINT
       else if (strchr("eEfgG", *src))
         {
 #ifdef CONFIG_CPP_HAVE_WARNING
 #  warning "No floating point support"
 #endif
         }
+#endif
     }
 
   return obj->nput;
diff --git a/nuttx/lib/lib_sscanf.c b/nuttx/lib/lib_sscanf.c
index b02515da7..c6110bdb0 100644
--- a/nuttx/lib/lib_sscanf.c
+++ b/nuttx/lib/lib_sscanf.c
@@ -260,10 +260,9 @@ int vsscanf(char *buf, const char *s, va_list ap)
 
           else if (*s == 'f')
             {
-#if 1
-#  ifdef CONFIG_CPP_HAVE_WARNING
-#    warning "No floating point conversions"
-#  endif
+#ifndef CONFIG_LIBC_FLOATINGPOINT
+              /* No floating point conversions */
+
               void *pv = va_arg(ap, void*);
 
               lvdbg("vsscanf: Return 0.0 to %p\n", pv);
@@ -331,7 +330,9 @@ int vsscanf(char *buf, const char *s, va_list ap)
             }
 
           if (!noassign)
-            count++;
+            {
+              count++;
+            }
           width = noassign = lflag = 0;
           s++;
         }