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  44 <a href="#glib-Limits-of-Basic-Types.synopsis" class="shortcut">Top</a>
  45                    |
  46                   <a href="#glib-Limits-of-Basic-Types.description" class="shortcut">Description</a>
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  49 <div class="refentry" title="Limits of Basic Types">
  50 <a name="glib-Limits-of-Basic-Types"></a><div class="titlepage"></div>
  51 <div class="refnamediv"><table width="100%"><tr>
  52 <td valign="top">
  53 <h2><span class="refentrytitle"><a name="glib-Limits-of-Basic-Types.top_of_page"></a>Limits of Basic Types</span></h2>
  54 <p>Limits of Basic Types — portable method of determining the limits of the standard types</p>
  55 </td>
  56 <td valign="top" align="right"></td>
  57 </tr></table></div>
  58 <div class="refsynopsisdiv" title="Synopsis">
  59 <a name="glib-Limits-of-Basic-Types.synopsis"></a><h2>Synopsis</h2>
  60 <pre class="synopsis">
  61 #include &lt;glib.h&gt;
  62
  63 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MININT:CAPS" title="G_MININT">G_MININT</a>
  64 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXINT:CAPS" title="G_MAXINT">G_MAXINT</a>
  65 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXUINT:CAPS" title="G_MAXUINT">G_MAXUINT</a>
  66
  67 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MINSHORT:CAPS" title="G_MINSHORT">G_MINSHORT</a>
  68 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXSHORT:CAPS" title="G_MAXSHORT">G_MAXSHORT</a>
  69 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXUSHORT:CAPS" title="G_MAXUSHORT">G_MAXUSHORT</a>
  70
  71 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MINLONG:CAPS" title="G_MINLONG">G_MINLONG</a>
  72 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXLONG:CAPS" title="G_MAXLONG">G_MAXLONG</a>
  73 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXULONG:CAPS" title="G_MAXULONG">G_MAXULONG</a>
  74
  75 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MININT8:CAPS" title="G_MININT8">G_MININT8</a>
  76 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXINT8:CAPS" title="G_MAXINT8">G_MAXINT8</a>
  77 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXUINT8:CAPS" title="G_MAXUINT8">G_MAXUINT8</a>
  78
  79 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MININT16:CAPS" title="G_MININT16">G_MININT16</a>
  80 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXINT16:CAPS" title="G_MAXINT16">G_MAXINT16</a>
  81 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXUINT16:CAPS" title="G_MAXUINT16">G_MAXUINT16</a>
  82
  83 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MININT32:CAPS" title="G_MININT32">G_MININT32</a>
  84 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXINT32:CAPS" title="G_MAXINT32">G_MAXINT32</a>
  85 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXUINT32:CAPS" title="G_MAXUINT32">G_MAXUINT32</a>
  86
  87 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MININT64:CAPS" title="G_MININT64">G_MININT64</a>
  88 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXINT64:CAPS" title="G_MAXINT64">G_MAXINT64</a>
  89 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXUINT64:CAPS" title="G_MAXUINT64">G_MAXUINT64</a>
  90
  91 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXSIZE:CAPS" title="G_MAXSIZE">G_MAXSIZE</a>
  92 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MINSSIZE:CAPS" title="G_MINSSIZE">G_MINSSIZE</a>
  93 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXSSIZE:CAPS" title="G_MAXSSIZE">G_MAXSSIZE</a>
  94
  95 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MINOFFSET:CAPS" title="G_MINOFFSET">G_MINOFFSET</a>
  96 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXOFFSET:CAPS" title="G_MAXOFFSET">G_MAXOFFSET</a>
  97
  98 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MINFLOAT:CAPS" title="G_MINFLOAT">G_MINFLOAT</a>
  99 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXFLOAT:CAPS" title="G_MAXFLOAT">G_MAXFLOAT</a>
 100
 101 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MINDOUBLE:CAPS" title="G_MINDOUBLE">G_MINDOUBLE</a>
 102 #define             <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXDOUBLE:CAPS" title="G_MAXDOUBLE">G_MAXDOUBLE</a>
 103 </pre>
 104 </div>
 105 <div class="refsect1" title="Description">
 106 <a name="glib-Limits-of-Basic-Types.description"></a><h2>Description</h2>
 107 <p>
 108 These macros provide a portable method to determine the limits of some of
 109 the standard integer and floating point types.
 110 </p>
 111 </div>
 112 <div class="refsect1" title="Details">
 113 <a name="glib-Limits-of-Basic-Types.details"></a><h2>Details</h2>
 114 <div class="refsect2" title="G_MININT">
 115 <a name="G-MININT:CAPS"></a><h3>G_MININT</h3>
 116 <pre class="programlisting">#define G_MININT INT_MIN
 117 </pre>
 118 <p>
 119 The minimum value which can be held in a <a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a>.
 120 </p>
 121 </div>
 122 <hr>
 123 <div class="refsect2" title="G_MAXINT">
 124 <a name="G-MAXINT:CAPS"></a><h3>G_MAXINT</h3>
 125 <pre class="programlisting">#define G_MAXINT INT_MAX
 126 </pre>
 127 <p>
 128 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a>.
 129 </p>
 130 </div>
 131 <hr>
 132 <div class="refsect2" title="G_MAXUINT">
 133 <a name="G-MAXUINT:CAPS"></a><h3>G_MAXUINT</h3>
 134 <pre class="programlisting">#define G_MAXUINT UINT_MAX
 135 </pre>
 136 <p>
 137 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="type">guint</span></a>.
 138 </p>
 139 </div>
 140 <hr>
 141 <div class="refsect2" title="G_MINSHORT">
 142 <a name="G-MINSHORT:CAPS"></a><h3>G_MINSHORT</h3>
 143 <pre class="programlisting">#define G_MINSHORT SHRT_MIN
 144 </pre>
 145 <p>
 146 The minimum value which can be held in a <a class="link" href="glib-Basic-Types.html#gshort" title="gshort"><span class="type">gshort</span></a>.
 147 </p>
 148 </div>
 149 <hr>
 150 <div class="refsect2" title="G_MAXSHORT">
 151 <a name="G-MAXSHORT:CAPS"></a><h3>G_MAXSHORT</h3>
 152 <pre class="programlisting">#define G_MAXSHORT SHRT_MAX
 153 </pre>
 154 <p>
 155 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#gshort" title="gshort"><span class="type">gshort</span></a>.
 156 </p>
 157 </div>
 158 <hr>
 159 <div class="refsect2" title="G_MAXUSHORT">
 160 <a name="G-MAXUSHORT:CAPS"></a><h3>G_MAXUSHORT</h3>
 161 <pre class="programlisting">#define G_MAXUSHORT USHRT_MAX
 162 </pre>
 163 <p>
 164 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#gushort" title="gushort"><span class="type">gushort</span></a>.
 165 </p>
 166 </div>
 167 <hr>
 168 <div class="refsect2" title="G_MINLONG">
 169 <a name="G-MINLONG:CAPS"></a><h3>G_MINLONG</h3>
 170 <pre class="programlisting">#define G_MINLONG LONG_MIN
 171 </pre>
 172 <p>
 173 The minimum value which can be held in a <a class="link" href="glib-Basic-Types.html#glong" title="glong"><span class="type">glong</span></a>.
 174 </p>
 175 </div>
 176 <hr>
 177 <div class="refsect2" title="G_MAXLONG">
 178 <a name="G-MAXLONG:CAPS"></a><h3>G_MAXLONG</h3>
 179 <pre class="programlisting">#define G_MAXLONG LONG_MAX
 180 </pre>
 181 <p>
 182 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#glong" title="glong"><span class="type">glong</span></a>.
 183 </p>
 184 </div>
 185 <hr>
 186 <div class="refsect2" title="G_MAXULONG">
 187 <a name="G-MAXULONG:CAPS"></a><h3>G_MAXULONG</h3>
 188 <pre class="programlisting">#define G_MAXULONG ULONG_MAX
 189 </pre>
 190 <p>
 191 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#gulong" title="gulong"><span class="type">gulong</span></a>.
 192 </p>
 193 </div>
 194 <hr>
 195 <div class="refsect2" title="G_MININT8">
 196 <a name="G-MININT8:CAPS"></a><h3>G_MININT8</h3>
 197 <pre class="programlisting">#define G_MININT8 ((gint8)  0x80)
 198 </pre>
 199 <p>
 200 The minimum value which can be held in a <a class="link" href="glib-Basic-Types.html#gint8" title="gint8"><span class="type">gint8</span></a>.
 201 </p>
 202 <p class="since">Since 2.4</p>
 203 </div>
 204 <hr>
 205 <div class="refsect2" title="G_MAXINT8">
 206 <a name="G-MAXINT8:CAPS"></a><h3>G_MAXINT8</h3>
 207 <pre class="programlisting">#define G_MAXINT8 ((gint8)  0x7f)
 208 </pre>
 209 <p>
 210 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#gint8" title="gint8"><span class="type">gint8</span></a>.
 211 </p>
 212 <p class="since">Since 2.4</p>
 213 </div>
 214 <hr>
 215 <div class="refsect2" title="G_MAXUINT8">
 216 <a name="G-MAXUINT8:CAPS"></a><h3>G_MAXUINT8</h3>
 217 <pre class="programlisting">#define G_MAXUINT8 ((guint8) 0xff)
 218 </pre>
 219 <p>
 220 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#guint8" title="guint8"><span class="type">guint8</span></a>.
 221 </p>
 222 <p class="since">Since 2.4</p>
 223 </div>
 224 <hr>
 225 <div class="refsect2" title="G_MININT16">
 226 <a name="G-MININT16:CAPS"></a><h3>G_MININT16</h3>
 227 <pre class="programlisting">#define G_MININT16 ((gint16)  0x8000)
 228 </pre>
 229 <p>
 230 The minimum value which can be held in a <a class="link" href="glib-Basic-Types.html#gint16" title="gint16"><span class="type">gint16</span></a>.
 231 </p>
 232 <p class="since">Since 2.4</p>
 233 </div>
 234 <hr>
 235 <div class="refsect2" title="G_MAXINT16">
 236 <a name="G-MAXINT16:CAPS"></a><h3>G_MAXINT16</h3>
 237 <pre class="programlisting">#define G_MAXINT16 ((gint16)  0x7fff)
 238 </pre>
 239 <p>
 240 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#gint16" title="gint16"><span class="type">gint16</span></a>.
 241 </p>
 242 <p class="since">Since 2.4</p>
 243 </div>
 244 <hr>
 245 <div class="refsect2" title="G_MAXUINT16">
 246 <a name="G-MAXUINT16:CAPS"></a><h3>G_MAXUINT16</h3>
 247 <pre class="programlisting">#define G_MAXUINT16 ((guint16) 0xffff)
 248 </pre>
 249 <p>
 250 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#guint16" title="guint16"><span class="type">guint16</span></a>.
 251 </p>
 252 <p class="since">Since 2.4</p>
 253 </div>
 254 <hr>
 255 <div class="refsect2" title="G_MININT32">
 256 <a name="G-MININT32:CAPS"></a><h3>G_MININT32</h3>
 257 <pre class="programlisting">#define G_MININT32 ((gint32)  0x80000000)
 258 </pre>
 259 <p>
 260 The minimum value which can be held in a <a class="link" href="glib-Basic-Types.html#gint32" title="gint32"><span class="type">gint32</span></a>.
 261 </p>
 262 <p class="since">Since 2.4</p>
 263 </div>
 264 <hr>
 265 <div class="refsect2" title="G_MAXINT32">
 266 <a name="G-MAXINT32:CAPS"></a><h3>G_MAXINT32</h3>
 267 <pre class="programlisting">#define G_MAXINT32 ((gint32)  0x7fffffff)
 268 </pre>
 269 <p>
 270 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#gint32" title="gint32"><span class="type">gint32</span></a>.
 271 </p>
 272 <p class="since">Since 2.4</p>
 273 </div>
 274 <hr>
 275 <div class="refsect2" title="G_MAXUINT32">
 276 <a name="G-MAXUINT32:CAPS"></a><h3>G_MAXUINT32</h3>
 277 <pre class="programlisting">#define G_MAXUINT32 ((guint32) 0xffffffff)
 278 </pre>
 279 <p>
 280 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#guint32" title="guint32"><span class="type">guint32</span></a>.
 281 </p>
 282 <p class="since">Since 2.4</p>
 283 </div>
 284 <hr>
 285 <div class="refsect2" title="G_MININT64">
 286 <a name="G-MININT64:CAPS"></a><h3>G_MININT64</h3>
 287 <pre class="programlisting">#define G_MININT64 ((gint64) G_GINT64_CONSTANT(0x8000000000000000))
 288 </pre>
 289 <p>
 290 The minimum value which can be held in a <a class="link" href="glib-Basic-Types.html#gint64" title="gint64"><span class="type">gint64</span></a>.
 291 </p>
 292 </div>
 293 <hr>
 294 <div class="refsect2" title="G_MAXINT64">
 295 <a name="G-MAXINT64:CAPS"></a><h3>G_MAXINT64</h3>
 296 <pre class="programlisting">#define G_MAXINT64 G_GINT64_CONSTANT(0x7fffffffffffffff)
 297 </pre>
 298 <p>
 299 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#gint64" title="gint64"><span class="type">gint64</span></a>.
 300 </p>
 301 </div>
 302 <hr>
 303 <div class="refsect2" title="G_MAXUINT64">
 304 <a name="G-MAXUINT64:CAPS"></a><h3>G_MAXUINT64</h3>
 305 <pre class="programlisting">#define G_MAXUINT64 G_GINT64_CONSTANT(0xffffffffffffffffU)
 306 </pre>
 307 <p>
 308 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#guint64" title="guint64"><span class="type">guint64</span></a>.
 309 </p>
 310 </div>
 311 <hr>
 312 <div class="refsect2" title="G_MAXSIZE">
 313 <a name="G-MAXSIZE:CAPS"></a><h3>G_MAXSIZE</h3>
 314 <pre class="programlisting">#define G_MAXSIZE G_MAXULONG
 315 </pre>
 316 <p>
 317 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="type">gsize</span></a>.
 318 </p>
 319 <p class="since">Since 2.4</p>
 320 </div>
 321 <hr>
 322 <div class="refsect2" title="G_MINSSIZE">
 323 <a name="G-MINSSIZE:CAPS"></a><h3>G_MINSSIZE</h3>
 324 <pre class="programlisting">#define G_MINSSIZE G_MINLONG
 325 </pre>
 326 <p>
 327 The minimum value which can be held in a <a class="link" href="glib-Basic-Types.html#gssize" title="gssize"><span class="type">gssize</span></a>.
 328 </p>
 329 <p class="since">Since 2.14</p>
 330 </div>
 331 <hr>
 332 <div class="refsect2" title="G_MAXSSIZE">
 333 <a name="G-MAXSSIZE:CAPS"></a><h3>G_MAXSSIZE</h3>
 334 <pre class="programlisting">#define G_MAXSSIZE G_MAXLONG
 335 </pre>
 336 <p>
 337 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#gssize" title="gssize"><span class="type">gssize</span></a>.
 338 </p>
 339 <p class="since">Since 2.14</p>
 340 </div>
 341 <hr>
 342 <div class="refsect2" title="G_MINOFFSET">
 343 <a name="G-MINOFFSET:CAPS"></a><h3>G_MINOFFSET</h3>
 344 <pre class="programlisting">#define G_MINOFFSET G_MININT64
 345 </pre>
 346 <p>
 347 The minimum value which can be held in a <a class="link" href="glib-Basic-Types.html#goffset" title="goffset"><span class="type">goffset</span></a>.
 348 </p>
 349 </div>
 350 <hr>
 351 <div class="refsect2" title="G_MAXOFFSET">
 352 <a name="G-MAXOFFSET:CAPS"></a><h3>G_MAXOFFSET</h3>
 353 <pre class="programlisting">#define G_MAXOFFSET G_MAXINT64
 354 </pre>
 355 <p>
 356 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#goffset" title="goffset"><span class="type">goffset</span></a>.
 357 </p>
 358 </div>
 359 <hr>
 360 <div class="refsect2" title="G_MINFLOAT">
 361 <a name="G-MINFLOAT:CAPS"></a><h3>G_MINFLOAT</h3>
 362 <pre class="programlisting">#define G_MINFLOAT FLT_MIN
 363 </pre>
 364 <p>
 365 The minimum positive value which can be held in a <a class="link" href="glib-Basic-Types.html#gfloat" title="gfloat"><span class="type">gfloat</span></a>.
 366 </p>
 367 <p>
 368 If you are interested in the smallest value which can be held in a <a class="link" href="glib-Basic-Types.html#gfloat" title="gfloat"><span class="type">gfloat</span></a>,
 369 use -G_MAX_FLOAT.
 370 </p>
 371 </div>
 372 <hr>
 373 <div class="refsect2" title="G_MAXFLOAT">
 374 <a name="G-MAXFLOAT:CAPS"></a><h3>G_MAXFLOAT</h3>
 375 <pre class="programlisting">#define G_MAXFLOAT FLT_MAX
 376 </pre>
 377 <p>
 378 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#gfloat" title="gfloat"><span class="type">gfloat</span></a>.
 379 </p>
 380 </div>
 381 <hr>
 382 <div class="refsect2" title="G_MINDOUBLE">
 383 <a name="G-MINDOUBLE:CAPS"></a><h3>G_MINDOUBLE</h3>
 384 <pre class="programlisting">#define G_MINDOUBLE DBL_MIN
 385 </pre>
 386 <p>
 387 The minimum positive value which can be held in a <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a>.
 388 </p>
 389 <p>
 390 If you are interested in the smallest value which can be held in a <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a>,
 391 use -G_MAXDOUBLE.
 392 </p>
 393 </div>
 394 <hr>
 395 <div class="refsect2" title="G_MAXDOUBLE">
 396 <a name="G-MAXDOUBLE:CAPS"></a><h3>G_MAXDOUBLE</h3>
 397 <pre class="programlisting">#define G_MAXDOUBLE DBL_MAX
 398 </pre>
 399 <p>
 400 The maximum value which can be held in a <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a>.
 401 </p>
 402 </div>
 403 </div>
 404 </div>
 405 <div class="footer">
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