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1 #ifndef CYGONCE_LIBC_STDIO_H |
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2 #define CYGONCE_LIBC_STDIO_H |
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3 //======================================================================== |
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4 // |
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5 // stdio.h |
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6 // |
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7 // ISO C standard I/O routines - with some POSIX 1003.1 extensions |
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8 // |
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9 //======================================================================== |
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10 //####COPYRIGHTBEGIN#### |
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11 // |
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12 // ------------------------------------------- |
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13 // The contents of this file are subject to the Cygnus eCos Public License |
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14 // Version 1.0 (the "License"); you may not use this file except in |
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15 // compliance with the License. You may obtain a copy of the License at |
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16 // http://sourceware.cygnus.com/ecos |
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17 // |
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18 // Software distributed under the License is distributed on an "AS IS" |
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19 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
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20 // License for the specific language governing rights and limitations under |
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21 // the License. |
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22 // |
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23 // The Original Code is eCos - Embedded Cygnus Operating System, released |
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24 // September 30, 1998. |
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25 // |
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26 // The Initial Developer of the Original Code is Cygnus. Portions created |
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27 // by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved. |
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28 // ------------------------------------------- |
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29 // |
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30 //####COPYRIGHTEND#### |
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31 //======================================================================== |
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32 //#####DESCRIPTIONBEGIN#### |
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33 // |
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34 // Author(s): jlarmour |
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35 // Contributors: jlarmour |
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36 // Date: 1999-01-19 |
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37 // Purpose: ISO C standard I/O routines |
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38 // Description: |
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39 // Usage: #include <stdio.h> |
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40 // |
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41 //####DESCRIPTIONEND#### |
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42 // |
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43 //======================================================================== |
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44 |
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45 // CONFIGURATION |
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46 |
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47 #include <pkgconf/libc.h> // Configuration header |
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48 |
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49 // Include the C library? |
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50 #ifdef CYGPKG_LIBC |
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51 |
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52 // INCLUDES |
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53 |
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54 #include <cyg/infra/cyg_type.h> // common type definitions and support |
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55 #include <stddef.h> // NULL and size_t from compiler |
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56 #include <stdarg.h> // va_list from compiler |
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57 |
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58 // CONSTANTS |
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59 |
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60 // Some of these values are odd to ensure that asserts have better effect |
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61 // should spurious values be passed to functions expecting these constants. |
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62 |
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63 // _IOFBF, _IOLBF, and _IONBF specify full, line or no buffering when used |
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64 // with setvbuf() - ISO C standard chap 7.9.1 |
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65 |
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66 #define _IOFBF (-2) |
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67 #define _IOLBF (-4) |
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68 #define _IONBF (-8) |
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69 |
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70 // EOF is a macro defined to any negative integer constant - ISO C standard |
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71 // chap. 7.9.1 |
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72 #define EOF (-1) |
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73 |
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74 // SEEK_CUR, SEEK_END and SEEK_SET are used with fseek() as position |
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75 // anchors - ISO C standard chap. 7.9.1 |
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76 #define SEEK_SET 0 |
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77 #define SEEK_CUR 1 |
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78 #define SEEK_END 2 |
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79 |
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80 |
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81 // TYPE DEFINITIONS |
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82 |
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83 // A type capable of specifying uniquely every file position - ISO C |
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84 // standard chap 7.9.1 |
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85 typedef cyg_ucount32 fpos_t; |
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86 |
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87 |
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88 typedef CYG_ADDRESS FILE; // FILE is just cast to an address here. It is |
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89 // uncast internally to the C library in stream.hxx |
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90 // as the C++ Cyg_StdioStream class. Optional |
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91 // run-time checking can be enabled to ensure that |
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92 // the cast is valid, using the standard assertion |
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93 // functionality |
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94 |
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95 // EXTERNAL VARIABLES |
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96 |
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97 // Default file streams for input/output. These only need to be |
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98 // expressions, not l-values - ISO C standard chap. 7.9.1 |
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99 // |
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100 // cyg_libc_stdio_stdin/out/err aren't really files of course, |
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101 // but they are only named here so that we can take the address of |
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102 // them, in which case it doesn't matter what type they point to really |
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103 // |
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104 // CYGPRI_LIBC_STDIO_NO_DEFAULT_STREAMS is used when initializing |
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105 // cyg_libc_stdio_stdin/out/err privately inside the C library |
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106 |
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107 #ifndef CYGPRI_LIBC_STDIO_NO_DEFAULT_STREAMS |
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108 extern FILE cyg_libc_stdio_stdin, cyg_libc_stdio_stdout, |
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109 cyg_libc_stdio_stderr; |
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110 |
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111 #define stdin (&cyg_libc_stdio_stdin) |
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112 #define stdout (&cyg_libc_stdio_stdout) |
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113 #define stderr (&cyg_libc_stdio_stderr) |
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114 #endif |
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115 |
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116 // FUNCTION PROTOTYPES |
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117 |
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118 //======================================================================== |
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119 |
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120 // ISO C 7.9.5 File access functions |
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121 |
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122 externC int |
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123 fclose( FILE * /* stream */ ); |
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124 |
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125 externC int |
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126 fflush( FILE * /* stream */ ); |
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127 |
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128 externC FILE * |
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129 fopen( const char * /* filename */, const char * /* mode */ ); |
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130 |
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131 externC FILE * |
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132 freopen( const char * /* filename */, const char * /* mode */, |
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133 FILE * /* stream */ ); |
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134 |
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135 externC void |
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136 setbuf( FILE * /* stream */, char * /* buffer */ ); |
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137 |
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138 externC int |
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139 setvbuf( FILE * /* stream */, char * /* buffer */, int /* mode */, |
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140 size_t /* size */ ); |
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141 |
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142 //======================================================================== |
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143 |
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144 // ISO C 7.9.6 Formatted input/output functions |
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145 |
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146 externC int |
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147 fprintf( FILE * /* stream */, const char * /* format */, ... ); |
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148 |
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149 externC int |
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150 fscanf( FILE * /* stream */, const char * /* format */, ... ); |
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151 |
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152 externC int |
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153 printf( const char * /* format */, ... ); |
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154 |
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155 externC int |
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156 scanf( const char * /* format */, ... ); |
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157 |
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158 externC int |
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159 sprintf( char * /* str */, const char * /* format */, ... ); |
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160 |
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161 externC int |
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162 sscanf( const char * /* str */, const char * /* format */, ... ); |
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163 |
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164 externC int |
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165 vfprintf( FILE * /* stream */, const char * /* format */, |
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166 va_list /* args */ ); |
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167 |
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168 externC int |
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169 vprintf( const char * /* format */, va_list /* args */ ); |
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170 |
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171 externC int |
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172 vsprintf( char * /* str */, const char * /* format */, |
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173 va_list /* args */ ); |
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174 |
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175 //======================================================================== |
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176 |
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177 // ISO C 7.9.7 Character input/output functions |
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178 |
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179 externC int |
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180 fgetc( FILE * /* stream */ ); |
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181 |
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182 externC char * |
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183 fgets( char * /* str */, int /* length */, FILE * /* stream */ ); |
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184 |
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185 externC int |
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186 fputc( int /* c */, FILE * /* stream */ ); |
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187 |
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188 externC int |
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189 fputs( const char * /* str */, FILE * /* stream */ ); |
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190 |
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191 // no function equivalent is required for these, so we can just #define |
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192 // them |
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193 |
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194 #define getc( __stream ) fgetc( __stream ) |
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195 |
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196 #define getchar() fgetc( stdin ) |
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197 |
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198 externC char * |
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199 gets( char * ); |
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200 |
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201 #define putc(__c, __stream) fputc(__c, __stream) |
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202 |
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203 #define putchar(__c) fputc(__c, stdout) |
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204 |
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205 externC int |
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206 puts( const char * /* str */ ); |
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207 |
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208 externC int |
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209 ungetc( int /* c */, FILE * /* stream */ ); |
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210 |
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211 //======================================================================== |
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212 |
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213 // ISO C 7.9.8 Direct input/output functions |
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214 |
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215 externC size_t |
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216 fread( void * /* ptr */, size_t /* object_size */, |
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217 size_t /* num_objects */, FILE * /* stream */ ); |
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218 |
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219 externC size_t |
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220 fwrite( const void * /* ptr */, size_t /* object_size */, |
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221 size_t /* num_objects */, FILE * /* stream */ ); |
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222 |
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223 |
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224 //======================================================================== |
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225 |
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226 // ISO C 7.9.10 Error-handling functions |
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227 |
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228 externC void |
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229 clearerr( FILE * /* stream */ ); |
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230 |
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231 externC int |
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232 feof( FILE * /* stream */ ); |
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233 |
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234 externC int |
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235 ferror( FILE * /* stream */ ); |
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236 |
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237 externC void |
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238 perror( const char * /* prefix_str */ ); |
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239 |
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240 //======================================================================== |
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241 |
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242 // Other non-ISO C functions |
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243 |
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244 externC int |
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245 fnprintf( FILE * /* stream */, size_t /* length */, |
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246 const char * /* format */, ... ); |
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247 |
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248 externC int |
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249 snprintf( char * /* str */, size_t /* length */, const char * /* format */, |
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250 ... ); |
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251 |
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252 externC int |
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253 vfnprintf( FILE * /* stream */, size_t /* length */, |
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254 const char * /* format */, va_list /* args */ ); |
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255 |
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256 externC int |
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257 vsnprintf( char * /* str */, size_t /* length */, |
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258 const char * /* format */, va_list /* args */ ); |
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259 |
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260 externC int |
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261 vscanf( const char * /* format */, va_list /* args */ ); |
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262 |
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263 externC int |
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264 vsscanf( const char * /* str */, const char * /* format */, |
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265 va_list /* args */ ); |
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266 |
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267 externC int |
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268 vfscanf( FILE * /* stream */, const char * /* format */, |
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269 va_list /* args */ ); |
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270 |
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271 |
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272 // INLINE FUNCTIONS |
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273 |
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274 #ifdef CYGIMP_LIBC_STDIO_INLINES |
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275 #include <stdio.inl> |
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276 #endif |
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277 |
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278 #endif // ifdef CYGPKG_LIBC |
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279 |
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280 #endif // CYGONCE_LIBC_STDIO_H multiple inclusion protection |
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281 |
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282 // EOF stdio.h |
