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4349 | Serge | 1 | /* |
2 | * Copyright (c) 1990 The Regents of the University of California. |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms are permitted |
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6 | * provided that the above copyright notice and this paragraph are |
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7 | * duplicated in all such forms and that any documentation, |
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8 | * advertising materials, and other materials related to such |
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9 | * distribution and use acknowledge that the software was developed |
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10 | * by the University of California, Berkeley. The name of the |
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11 | * University may not be used to endorse or promote products derived |
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12 | * from this software without specific prior written permission. |
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13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
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14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
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15 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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16 | */ |
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17 | |||
18 | /* |
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19 | FUNCTION |
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20 | < |
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21 | |||
22 | INDEX |
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23 | fgetc |
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24 | INDEX |
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25 | _fgetc_r |
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26 | |||
27 | ANSI_SYNOPSIS |
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28 | #include |
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29 | int fgetc(FILE *<[fp]>); |
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30 | |||
31 | #include |
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32 | int _fgetc_r(struct _reent *<[ptr]>, FILE *<[fp]>); |
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33 | |||
34 | TRAD_SYNOPSIS |
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35 | #include |
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36 | int fgetc(<[fp]>) |
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37 | FILE *<[fp]>; |
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38 | |||
39 | #include |
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40 | int _fgetc_r(<[ptr]>, <[fp]>) |
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41 | struct _reent *<[ptr]>; |
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42 | FILE *<[fp]>; |
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43 | |||
44 | DESCRIPTION |
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45 | Use < |
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46 | identified by <[fp]>. As a side effect, < |
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47 | current position indicator. |
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48 | |||
49 | For a macro version of this function, see < |
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50 | |||
51 | The function <<_fgetc_r>> is simply a reentrant version of |
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52 | < |
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53 | pointer argument: <[ptr]>. |
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54 | |||
55 | RETURNS |
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56 | The next character (read as an < |
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57 | < |
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58 | read error; in either of these situations, < |
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59 | |||
60 | You can distinguish the two situations that cause an < |
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61 | using the < |
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62 | |||
63 | PORTABILITY |
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64 | ANSI C requires < |
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65 | |||
66 | Supporting OS subroutines required: < |
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67 | < |
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68 | */ |
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69 | |||
70 | #include <_ansi.h> |
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71 | #include |
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72 | #include "local.h" |
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73 | |||
74 | int |
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75 | _DEFUN(_fgetc_r, (ptr, fp), |
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76 | struct _reent * ptr _AND |
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77 | FILE * fp) |
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78 | { |
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79 | int result; |
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80 | CHECK_INIT(ptr, fp); |
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4921 | Serge | 81 | _newlib_flockfile_start (fp); |
4349 | Serge | 82 | result = __sgetc_r (ptr, fp); |
4921 | Serge | 83 | _newlib_flockfile_end (fp); |
4349 | Serge | 84 | return result; |
85 | } |
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86 | |||
87 | #ifndef _REENT_ONLY |
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88 | |||
89 | int |
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90 | _DEFUN(fgetc, (fp), |
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91 | FILE * fp) |
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92 | { |
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93 | #if !defined(PREFER_SIZE_OVER_SPEED) && !defined(__OPTIMIZE_SIZE__) |
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94 | int result; |
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4921 | Serge | 95 | struct _reent *reent = _REENT; |
96 | |||
97 | CHECK_INIT(reent, fp); |
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98 | _newlib_flockfile_start (fp); |
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99 | result = __sgetc_r (reent, fp); |
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100 | _newlib_flockfile_end (fp); |
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4349 | Serge | 101 | return result; |
102 | #else |
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103 | return _fgetc_r (_REENT, fp); |
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104 | #endif |
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105 | } |
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106 | |||
107 | #endif /* !_REENT_ONLY */ |
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108 |