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1 #ifndef CYGONCE_LIBC_STDLIB_H |
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2 #define CYGONCE_LIBC_STDLIB_H |
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3 //======================================================================== |
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4 // |
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5 // stdlib.h |
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6 // |
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7 // ISO C standard utility functions (ISO C standard section 7.10) |
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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 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@cygnus.co.uk |
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36 // Date: 1998-02-13 |
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37 // Purpose: |
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38 // Description: |
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39 // Usage: #include <stdlib.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, wchar_t and size_t from compiler |
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56 #include <limits.h> // for INT_MAX definition used below |
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57 |
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58 // CONSTANTS |
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59 |
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60 // as described in ANSI para 7.10 |
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61 |
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62 // codes to pass to exit() |
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63 |
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64 #define EXIT_SUCCESS 0 // Successful exit status |
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65 #define EXIT_FAILURE 1 // Failing exit status |
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66 |
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67 // Maximum value returned by rand() |
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68 |
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69 #define RAND_MAX INT_MAX |
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70 |
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71 |
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72 // Maximum number of bytes in a multibyte character for the current locale |
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73 |
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74 #define MB_CUR_MAX 1 |
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75 |
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76 |
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77 // TYPE DEFINITIONS |
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78 |
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79 // as described in ANSI para 7.10 |
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80 |
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81 // return type of the div() function |
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82 |
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83 typedef struct { |
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84 int quot; // quotient |
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85 int rem; // remainder |
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86 } div_t; |
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87 |
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88 |
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89 // return type of the ldiv() function |
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90 |
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91 typedef struct { |
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92 long quot; // quotient |
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93 long rem; // remainder |
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94 } ldiv_t; |
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95 |
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96 // Unofficial type of comparison function used by both bsearch() and |
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97 // qsort() |
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98 |
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99 typedef int (*Cyg_comparison_fn_t)(const void * /* object1 */, |
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100 const void * /* object2 */); |
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101 |
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102 // Similarly, type of function used by atexit() |
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103 typedef void (*Cyg_atexit_fn_t)( void ); |
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104 |
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105 |
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106 // FUNCTION PROTOTYPES |
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107 |
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108 //======================================================================== |
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109 |
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110 // 7.10.1 String conversion functions |
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111 |
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112 externC double |
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113 atof( const char * /* double_str */ ); |
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114 |
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115 externC int |
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116 atoi( const char * /* int_str */ ); |
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117 |
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118 externC long |
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119 atol( const char * /* long_str */ ); |
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120 |
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121 externC double |
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122 strtod( const char * /* double_str */, char ** /* endptr */ ); |
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123 |
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124 externC long |
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125 strtol( const char * /* long_str */, char ** /* endptr */, |
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126 int /* base */ ); |
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127 |
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128 externC unsigned long |
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129 strtoul( const char * /* ulong_str */, char ** /* endptr */, |
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130 int /* base */ ); |
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131 |
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132 //======================================================================== |
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133 |
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134 // 7.10.2 Pseudo-random sequence generation functions |
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135 |
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136 externC int |
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137 rand( void ); |
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138 |
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139 externC void |
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140 srand( unsigned int /* seed */ ); |
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141 |
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142 // POSIX 1003.1 section 8.3.8 rand_r() |
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143 externC int |
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144 rand_r( unsigned int * /* seed */ ); |
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145 |
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146 //======================================================================== |
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147 |
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148 // 7.10.3 Memory management functions |
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149 |
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150 #ifdef CYGPKG_LIBC_MALLOC |
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151 |
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152 externC void * |
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153 calloc( size_t /* num_objects */, size_t /* object_size */ ); |
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154 |
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155 externC void |
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156 free( void * /* ptr */ ); |
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157 |
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158 externC void * |
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159 malloc( size_t /* size */ ); |
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160 |
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161 externC void * |
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162 realloc( void * /* ptr */, size_t /* size */ ); |
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163 |
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164 #endif // ifdef CYGPKG_LIBC_MALLOC |
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165 |
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166 //======================================================================== |
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167 |
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168 // 7.10.4 Communication with the environment |
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169 |
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170 externC void |
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171 abort( void ) CYGPRI_LIBC_NORETURN; |
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172 |
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173 externC int |
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174 atexit( Cyg_atexit_fn_t /* func_to_register */ ); |
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175 |
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176 externC void |
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177 exit( int /* status */ ) CYGPRI_LIBC_NORETURN; |
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178 |
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179 /* POSIX 1003.1 section 3.2.2 "Terminate a process" */ |
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180 |
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181 externC void |
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182 _exit( int /* status */ ) CYGPRI_LIBC_NORETURN; |
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183 |
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184 externC char * |
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185 getenv( const char * /* name */ ); |
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186 |
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187 |
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188 //======================================================================== |
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189 |
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190 // 7.10.5 Searching and sorting utilities |
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191 |
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192 externC void * |
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193 bsearch( const void * /* search_key */, const void * /* first_object */, |
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194 size_t /* num_objects */, size_t /* object_size */, |
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195 Cyg_comparison_fn_t /* comparison_fn */ ); |
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196 |
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197 externC void |
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198 qsort( void * /* first_object */, size_t /* num_objects */, |
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199 size_t /* object_size */, Cyg_comparison_fn_t /* comparison_fn */ ); |
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200 |
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201 |
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202 //======================================================================== |
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203 |
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204 // 7.10.6 Integer arithmetic functions |
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205 |
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206 externC int |
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207 abs( int /* val */ ); |
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208 |
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209 externC div_t |
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210 div( int /* numerator */, int /* denominator */ ); |
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211 |
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212 externC long |
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213 labs( long /* val */ ); |
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214 |
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215 externC ldiv_t |
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216 ldiv( long /* numerator */, long /* denominator */ ); |
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217 |
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218 //======================================================================== |
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219 |
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220 // INLINE FUNCTIONS |
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221 |
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222 #ifdef CYGIMP_LIBC_STDLIB_INLINES |
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223 #include <stdlib.inl> |
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224 #endif |
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225 |
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226 #endif // ifdef CYGPKG_LIBC |
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227 |
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228 #endif // CYGONCE_LIBC_STDLIB_H multiple inclusion protection |
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229 |
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230 // EOF stdlib.h |
