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annotate packages/language/c/libc/current/src/stdlib/atof.cxx @ 64:c38311975d4f ecos-sw-2000-01-28

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Merge from eCos master repository on 2000-01-28-04:28:11-GMT
author jlarmour
date Fri, 28 Jan 2000 04:59:39 +0000
parents 443894e2e912
children bf00f99aec69
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1 //===========================================================================
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2 //
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3 // atof.cxx
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4 //
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5 // Real alternative for inline implementation of the ANSI standard
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6 // atof() utility function defined in section 7.10.1.1 of the standard
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7 //
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8 //===========================================================================
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9 //####COPYRIGHTBEGIN####
64
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10 //
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11 // -------------------------------------------
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12 // The contents of this file are subject to the Red Hat eCos Public License
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13 // Version 1.0 (the "License"); you may not use this file except in
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14 // compliance with the License. You may obtain a copy of the License at
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15 // http://sourceware.cygnus.com/ecos
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16 //
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17 // Software distributed under the License is distributed on an
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18 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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19 // License for the specific language governing rights and limitations under
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20 // the License.
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21 //
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22 // The Original Code is eCos - Embedded Configurable Operating System,
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23 // released September 30, 1998.
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24 //
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25 // The Initial Developer of the Original Code is Red Hat.
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26 // Portions created by Red Hat are
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27 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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28 // All Rights Reserved.
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29 // -------------------------------------------
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30 //
0
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31 //####COPYRIGHTEND####
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32 //===========================================================================
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33 //#####DESCRIPTIONBEGIN####
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34 //
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35 // Author(s): jlarmour
2
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36 // Contributors: jlarmour
0
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37 // Date: 1998-02-13
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38 // Purpose:
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39 // Description:
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40 // Usage:
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41 //
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42 //####DESCRIPTIONEND####
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43 //
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44 //===========================================================================
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45
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46 // CONFIGURATION
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47
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48 #include <pkgconf/libc.h> // Configuration header
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49
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50 // Include the C library? And strtod() which we use?
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51 #if defined(CYGPKG_LIBC) && defined(CYGFUN_LIBC_strtod)
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52
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53 // INCLUDES
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54
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55 #include <cyg/infra/cyg_type.h> // Common type definitions and support
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56 #include <cyg/infra/cyg_trac.h> // Tracing support
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57 #include <cyg/infra/cyg_ass.h> // Assertion support
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58
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59 // We don't want the inline versions of stdlib functions defined here
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60
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61 #ifdef CYGIMP_LIBC_STDLIB_INLINES
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62 #undef CYGIMP_LIBC_STDLIB_INLINES
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63 #endif
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64
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65 #include <stddef.h> // NULL, wchar_t and size_t from compiler
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66 #include <stdlib.h> // Main header for stdlib functions
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67 #include "clibincl/stdlibsupp.hxx" // Support for stdlib functions
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68
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69
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70 // EXPORTED SYMBOLS
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71
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72 externC double
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73 atof( const char * ) CYGPRI_LIBC_WEAK_ALIAS("_atof");
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74
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75
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76 // FUNCTIONS
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77
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78 double
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79 _atof( const char *nptr )
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80 {
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81 double retval;
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82
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83 CYG_REPORT_FUNCNAMETYPE( "_atof", "returning %f" );
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84
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85 CYG_CHECK_DATA_PTR( nptr, "nptr is an invalid pointer!" );
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86
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87 retval = _strtod( nptr, (char **)NULL );
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88
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89 CYG_REPORT_RETVAL( retval );
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90
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91 return retval;
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92 } // _atof()
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93
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94
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95 #endif // if defined(CYGPKG_LIBC) && defined(CYGFUN_LIBC_strtod)
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96
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97 // EOF atof.cxx