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Add floating point support to printf

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2656 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2010-05-08 03:10:51 +00:00
parent 529b0ba053
commit 2840124ed7
8 changed files with 1941 additions and 8 deletions
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lib/lib_libvsprintf.c
+9 -4
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@@ -1,7 +1,7 @@
/****************************************************************************
* lib/lib_libvsprintf.c
*
* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
* Copyright (C) 2007-2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
@@ -186,6 +186,12 @@ static const char g_nullstring[] = "(null)";
* Private Functions
****************************************************************************/
/* Include floating point functions */
#ifdef CONFIG_LIBC_FLOATINGPOINT
# include "lib_libdtoa.c"
#endif
/****************************************************************************
* Name: ptohex
****************************************************************************/
@@ -1468,9 +1474,8 @@ int lib_vsprintf(FAR struct lib_outstream_s *obj, const char *src, va_list ap)
#ifdef CONFIG_LIBC_FLOATINGPOINT
else if (strchr("eEfgG", *src))
{
#ifdef CONFIG_CPP_HAVE_WARNING
# warning "No floating point support"
#endif
double dblval = va_arg(ap, double);
lib_dtoa(obj, *src, trunc, flags, dblval);
}
#endif
}