reactos/dll/opengl/mesa/main/imports.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.5
   4  *
   5  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25
  26 /**
  27  * \file imports.h
  28  * Standard C library function wrappers.
  29  *
  30  * This file provides wrappers for all the standard C library functions
  31  * like malloc(), free(), printf(), getenv(), etc.
  32  */
  33
  34
  35 #ifndef IMPORTS_H
  36 #define IMPORTS_H
  37
  38
  39 #include "compiler.h"
  40 #include "glheader.h"
  41
  42
  43 #ifdef __cplusplus
  44 extern "C" {
  45 #endif
  46
  47
  48 /**********************************************************************/
  49 /** Memory macros */
  50 /*@{*/
  51
  52 /** Allocate \p BYTES bytes */
  53 #define MALLOC(BYTES)      malloc(BYTES)
  54 /** Allocate and zero \p BYTES bytes */
  55 #define CALLOC(BYTES)      calloc(1, BYTES)
  56 /** Allocate a structure of type \p T */
  57 #define MALLOC_STRUCT(T)   (struct T *) malloc(sizeof(struct T))
  58 /** Allocate and zero a structure of type \p T */
  59 #define CALLOC_STRUCT(T)   (struct T *) calloc(1, sizeof(struct T))
  60 /** Free memory */
  61 #define FREE(PTR)          free(PTR)
  62
  63 /*@}*/
  64
  65
  66 /*
  67  * For GL_ARB_vertex_buffer_object we need to treat vertex array pointers
  68  * as offsets into buffer stores.  Since the vertex array pointer and
  69  * buffer store pointer are both pointers and we need to add them, we use
  70  * this macro.
  71  * Both pointers/offsets are expressed in bytes.
  72  */
  73 #define ADD_POINTERS(A, B)  ( (GLubyte *) (A) + (uintptr_t) (B) )
  74
  75
  76 /**
  77  * Sometimes we treat GLfloats as GLints.  On x86 systems, moving a float
  78  * as a int (thereby using integer registers instead of FP registers) is
  79  * a performance win.  Typically, this can be done with ordinary casts.
  80  * But with gcc's -fstrict-aliasing flag (which defaults to on in gcc 3.0)
  81  * these casts generate warnings.
  82  * The following union typedef is used to solve that.
  83  */
  84 typedef union { GLfloat f; GLint i; } fi_type;
  85
  86
  87
  88 /**********************************************************************
  89  * Math macros
  90  */
  91
  92 #define MAX_GLUSHORT    0xffff
  93 #define MAX_GLUINT      0xffffffff
  94
  95 /* Degrees to radians conversion: */
  96 #define DEG2RAD (M_PI/180.0)
  97
  98
  99 /***
 100  *** SQRTF: single-precision square root
 101  ***/
 102 #if 0 /* _mesa_sqrtf() not accurate enough - temporarily disabled */
 103 #  define SQRTF(X)  _mesa_sqrtf(X)
 104 #else
 105 #  define SQRTF(X)  (float) sqrt((float) (X))
 106 #endif
 107
 108
 109 /***
 110  *** INV_SQRTF: single-precision inverse square root
 111  ***/
 112 #if 0
 113 #define INV_SQRTF(X) _mesa_inv_sqrt(X)
 114 #else
 115 #define INV_SQRTF(X) (1.0F / SQRTF(X))  /* this is faster on a P4 */
 116 #endif
 117
 118
 119 /**
 120  * \name Work-arounds for platforms that lack C99 math functions
 121  */
 122 /*@{*/
 123 #if (!defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE < 600)) && !defined(_ISOC99_SOURCE) \
 124    && (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L)) \
 125    && (!defined(_MSC_VER) || (_MSC_VER < 1400))
 126 #define acosf(f) ((float) acos(f))
 127 #define asinf(f) ((float) asin(f))
 128 #define atan2f(x,y) ((float) atan2(x,y))
 129 #define atanf(f) ((float) atan(f))
 130 #define cielf(f) ((float) ciel(f))
 131 #define cosf(f) ((float) cos(f))
 132 #define coshf(f) ((float) cosh(f))
 133 #define expf(f) ((float) exp(f))
 134 #define exp2f(f) ((float) exp2(f))
 135 #define floorf(f) ((float) floor(f))
 136 #define logf(f) ((float) log(f))
 137
 138 #ifdef ANDROID
 139 #define log2f(f) (logf(f) * (float) (1.0 / M_LN2))
 140 #else
 141 #define log2f(f) ((float) log2(f))
 142 #endif
 143
 144 #define powf(x,y) ((float) pow(x,y))
 145 #define sinf(f) ((float) sin(f))
 146 #define sinhf(f) ((float) sinh(f))
 147 #define sqrtf(f) ((float) sqrt(f))
 148 #define tanf(f) ((float) tan(f))
 149 #define tanhf(f) ((float) tanh(f))
 150 #define acoshf(f) ((float) acosh(f))
 151 #define asinhf(f) ((float) asinh(f))
 152 #define atanhf(f) ((float) atanh(f))
 153 #endif
 154
 155 #if defined(_MSC_VER)
 156 static inline float truncf(float x) { return x < 0.0f ? ceilf(x) : floorf(x); }
 157 static inline float exp2f(float x) { return powf(2.0f, x); }
 158 static inline float log2f(float x) { return logf(x) * 1.442695041f; }
 159 static inline float asinhf(float x) { return logf(x + sqrtf(x * x + 1.0f)); }
 160 static inline float acoshf(float x) { return logf(x + sqrtf(x * x - 1.0f)); }
 161 static inline float atanhf(float x) { return (logf(1.0f + x) - logf(1.0f - x)) / 2.0f; }
 162 static inline int isblank(int ch) { return ch == ' ' || ch == '\t'; }
 163 #define strtoll(p, e, b) _strtoi64(p, e, b)
 164 #endif
 165 /*@}*/
 166
 167 /***
 168  *** LOG2: Log base 2 of float
 169  ***/
 170 #ifdef USE_IEEE
 171 #if 0
 172 /* This is pretty fast, but not accurate enough (only 2 fractional bits).
 173  * Based on code from http://www.stereopsis.com/log2.html
 174  */
 175 static inline GLfloat LOG2(GLfloat x)
 176 {
 177    const GLfloat y = x * x * x * x;
 178    const GLuint ix = *((GLuint *) &y);
 179    const GLuint exp = (ix >> 23) & 0xFF;
 180    const GLint log2 = ((GLint) exp) - 127;
 181    return (GLfloat) log2 * (1.0 / 4.0);  /* 4, because of x^4 above */
 182 }
 183 #endif
 184 /* Pretty fast, and accurate.
 185  * Based on code from http://www.flipcode.com/totd/
 186  */
 187 static inline GLfloat LOG2(GLfloat val)
 188 {
 189    fi_type num;
 190    GLint log_2;
 191    num.f = val;
 192    log_2 = ((num.i >> 23) & 255) - 128;
 193    num.i &= ~(255 << 23);
 194    num.i += 127 << 23;
 195    num.f = ((-1.0f/3) * num.f + 2) * num.f - 2.0f/3;
 196    return num.f + log_2;
 197 }
 198 #else
 199 /*
 200  * NOTE: log_base_2(x) = log(x) / log(2)
 201  * NOTE: 1.442695 = 1/log(2).
 202  */
 203 #define LOG2(x)  ((GLfloat) (log(x) * 1.442695F))
 204 #endif
 205
 206
 207 /***
 208  *** IS_INF_OR_NAN: test if float is infinite or NaN
 209  ***/
 210 #ifdef USE_IEEE
 211 static inline int IS_INF_OR_NAN( float x )
 212 {
 213    fi_type tmp;
 214    tmp.f = x;
 215    return !(int)((unsigned int)((tmp.i & 0x7fffffff)-0x7f800000) >> 31);
 216 }
 217 #elif defined(isfinite)
 218 #define IS_INF_OR_NAN(x)        (!isfinite(x))
 219 #elif defined(finite)
 220 #define IS_INF_OR_NAN(x)        (!finite(x))
 221 #elif defined(__VMS)
 222 #define IS_INF_OR_NAN(x)        (!finite(x))
 223 #elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
 224 #define IS_INF_OR_NAN(x)        (!isfinite(x))
 225 #else
 226 #define IS_INF_OR_NAN(x)        (!finite(x))
 227 #endif
 228
 229
 230 /***
 231  *** IS_NEGATIVE: test if float is negative
 232  ***/
 233 #if defined(USE_IEEE)
 234 static inline int GET_FLOAT_BITS( float x )
 235 {
 236    fi_type fi;
 237    fi.f = x;
 238    return fi.i;
 239 }
 240 #define IS_NEGATIVE(x) (GET_FLOAT_BITS(x) < 0)
 241 #else
 242 #define IS_NEGATIVE(x) (x < 0.0F)
 243 #endif
 244
 245
 246 /***
 247  *** DIFFERENT_SIGNS: test if two floats have opposite signs
 248  ***/
 249 #if defined(USE_IEEE)
 250 #define DIFFERENT_SIGNS(x,y) ((GET_FLOAT_BITS(x) ^ GET_FLOAT_BITS(y)) & (1<<31))
 251 #else
 252 /* Could just use (x*y<0) except for the flatshading requirements.
 253  * Maybe there's a better way?
 254  */
 255 #define DIFFERENT_SIGNS(x,y) ((x) * (y) <= 0.0F && (x) - (y) != 0.0F)
 256 #endif
 257
 258
 259 /***
 260  *** CEILF: ceiling of float
 261  *** FLOORF: floor of float
 262  *** FABSF: absolute value of float
 263  *** LOGF: the natural logarithm (base e) of the value
 264  *** EXPF: raise e to the value
 265  *** LDEXPF: multiply value by an integral power of two
 266  *** FREXPF: extract mantissa and exponent from value
 267  ***/
 268 #if defined(__gnu_linux__)
 269 /* C99 functions */
 270 #define CEILF(x)   ceilf(x)
 271 #define FLOORF(x)  floorf(x)
 272 #define FABSF(x)   fabsf(x)
 273 #define LOGF(x)    logf(x)
 274 #define EXPF(x)    expf(x)
 275 #define LDEXPF(x,y)  ldexpf(x,y)
 276 #define FREXPF(x,y)  frexpf(x,y)
 277 #else
 278 #define CEILF(x)   ((GLfloat) ceil(x))
 279 #define FLOORF(x)  ((GLfloat) floor(x))
 280 #define FABSF(x)   ((GLfloat) fabs(x))
 281 #define LOGF(x)    ((GLfloat) log(x))
 282 #define EXPF(x)    ((GLfloat) exp(x))
 283 #define LDEXPF(x,y)  ((GLfloat) ldexp(x,y))
 284 #define FREXPF(x,y)  ((GLfloat) frexp(x,y))
 285 #endif
 286
 287
 288 /***
 289  *** IROUND: return (as an integer) float rounded to nearest integer
 290  ***/
 291 #if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__)
 292 static inline int iround(float f)
 293 {
 294    int r;
 295    __asm__ ("fistpl %0" : "=m" (r) : "t" (f) : "st");
 296    return r;
 297 }
 298 #define IROUND(x)  iround(x)
 299 #elif defined(USE_X86_ASM) && defined(_MSC_VER)
 300 static inline int iround(float f)
 301 {
 302    int r;
 303    _asm {
 304          fld f
 305          fistp r
 306         }
 307    return r;
 308 }
 309 #define IROUND(x)  iround(x)
 310 #elif defined(__WATCOMC__) && defined(__386__)
 311 long iround(float f);
 312 #pragma aux iround =                    \
 313         "push   eax"                        \
 314         "fistp  dword ptr [esp]"            \
 315         "pop    eax"                        \
 316         parm [8087]                         \
 317         value [eax]                         \
 318         modify exact [eax];
 319 #define IROUND(x)  iround(x)
 320 #else
 321 #define IROUND(f)  ((int) (((f) >= 0.0F) ? ((f) + 0.5F) : ((f) - 0.5F)))
 322 #endif
 323
 324 #define IROUND64(f)  ((GLint64) (((f) >= 0.0F) ? ((f) + 0.5F) : ((f) - 0.5F)))
 325
 326 /***
 327  *** IROUND_POS: return (as an integer) positive float rounded to nearest int
 328  ***/
 329 #ifdef DEBUG
 330 #define IROUND_POS(f) (assert((f) >= 0.0F), IROUND(f))
 331 #else
 332 #define IROUND_POS(f) (IROUND(f))
 333 #endif
 334
 335
 336 /***
 337  *** IFLOOR: return (as an integer) floor of float
 338  ***/
 339 #if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__)
 340 /*
 341  * IEEE floor for computers that round to nearest or even.
 342  * 'f' must be between -4194304 and 4194303.
 343  * This floor operation is done by "(iround(f + .5) + iround(f - .5)) >> 1",
 344  * but uses some IEEE specific tricks for better speed.
 345  * Contributed by Josh Vanderhoof
 346  */
 347 static inline int ifloor(float f)
 348 {
 349    int ai, bi;
 350    double af, bf;
 351    af = (3 << 22) + 0.5 + (double)f;
 352    bf = (3 << 22) + 0.5 - (double)f;
 353    /* GCC generates an extra fstp/fld without this. */
 354    __asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st");
 355    __asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st");
 356    return (ai - bi) >> 1;
 357 }
 358 #define IFLOOR(x)  ifloor(x)
 359 #elif defined(USE_IEEE)
 360 static inline int ifloor(float f)
 361 {
 362    int ai, bi;
 363    double af, bf;
 364    fi_type u;
 365
 366    af = (3 << 22) + 0.5 + (double)f;
 367    bf = (3 << 22) + 0.5 - (double)f;
 368    u.f = (float) af;  ai = u.i;
 369    u.f = (float) bf;  bi = u.i;
 370    return (ai - bi) >> 1;
 371 }
 372 #define IFLOOR(x)  ifloor(x)
 373 #else
 374 static inline int ifloor(float f)
 375 {
 376    int i = IROUND(f);
 377    return (i > f) ? i - 1 : i;
 378 }
 379 #define IFLOOR(x)  ifloor(x)
 380 #endif
 381
 382
 383 /***
 384  *** ICEIL: return (as an integer) ceiling of float
 385  ***/
 386 #if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__)
 387 /*
 388  * IEEE ceil for computers that round to nearest or even.
 389  * 'f' must be between -4194304 and 4194303.
 390  * This ceil operation is done by "(iround(f + .5) + iround(f - .5) + 1) >> 1",
 391  * but uses some IEEE specific tricks for better speed.
 392  * Contributed by Josh Vanderhoof
 393  */
 394 static inline int iceil(float f)
 395 {
 396    int ai, bi;
 397    double af, bf;
 398    af = (3 << 22) + 0.5 + (double)f;
 399    bf = (3 << 22) + 0.5 - (double)f;
 400    /* GCC generates an extra fstp/fld without this. */
 401    __asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st");
 402    __asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st");
 403    return (ai - bi + 1) >> 1;
 404 }
 405 #define ICEIL(x)  iceil(x)
 406 #elif defined(USE_IEEE)
 407 static inline int iceil(float f)
 408 {
 409    int ai, bi;
 410    double af, bf;
 411    fi_type u;
 412    af = (3 << 22) + 0.5 + (double)f;
 413    bf = (3 << 22) + 0.5 - (double)f;
 414    u.f = (float) af; ai = u.i;
 415    u.f = (float) bf; bi = u.i;
 416    return (ai - bi + 1) >> 1;
 417 }
 418 #define ICEIL(x)  iceil(x)
 419 #else
 420 static inline int iceil(float f)
 421 {
 422    int i = IROUND(f);
 423    return (i < f) ? i + 1 : i;
 424 }
 425 #define ICEIL(x)  iceil(x)
 426 #endif
 427
 428
 429 /**
 430  * Is x a power of two?
 431  */
 432 static inline int
 433 _mesa_is_pow_two(int x)
 434 {
 435    return !(x & (x - 1));
 436 }
 437
 438 /**
 439  * Round given integer to next higer power of two
 440  * If X is zero result is undefined.
 441  *
 442  * Source for the fallback implementation is
 443  * Sean Eron Anderson's webpage "Bit Twiddling Hacks"
 444  * http://graphics.stanford.edu/~seander/bithacks.html
 445  *
 446  * When using builtin function have to do some work
 447  * for case when passed values 1 to prevent hiting
 448  * undefined result from __builtin_clz. Undefined
 449  * results would be different depending on optimization
 450  * level used for build.
 451  */
 452 static inline int32_t
 453 _mesa_next_pow_two_32(uint32_t x)
 454 {
 455 #if defined(__GNUC__) && \
 456         ((__GNUC__ * 100 + __GNUC_MINOR__) >= 304) /* gcc 3.4 or later */
 457         uint32_t y = (x != 1);
 458         return (1 + y) << ((__builtin_clz(x - y) ^ 31) );
 459 #else
 460         x--;
 461         x |= x >> 1;
 462         x |= x >> 2;
 463         x |= x >> 4;
 464         x |= x >> 8;
 465         x |= x >> 16;
 466         x++;
 467         return x;
 468 #endif
 469 }
 470
 471 static inline int64_t
 472 _mesa_next_pow_two_64(uint64_t x)
 473 {
 474 #if defined(__GNUC__) && \
 475         ((__GNUC__ * 100 + __GNUC_MINOR__) >= 304) /* gcc 3.4 or later */
 476         uint64_t y = (x != 1);
 477         if (sizeof(x) == sizeof(long))
 478                 return (1 + y) << ((__builtin_clzl(x - y) ^ 63));
 479         else
 480                 return (1 + y) << ((__builtin_clzll(x - y) ^ 63));
 481 #else
 482         x--;
 483         x |= x >> 1;
 484         x |= x >> 2;
 485         x |= x >> 4;
 486         x |= x >> 8;
 487         x |= x >> 16;
 488         x |= x >> 32;
 489         x++;
 490         return x;
 491 #endif
 492 }
 493
 494
 495 /*
 496  * Returns the floor form of binary logarithm for a 32-bit integer.
 497  */
 498 static inline GLuint
 499 _mesa_logbase2(GLuint n)
 500 {
 501 #if defined(__GNUC__) && \
 502    ((__GNUC__ * 100 + __GNUC_MINOR__) >= 304) /* gcc 3.4 or later */
 503    return (31 - __builtin_clz(n | 1));
 504 #else
 505    GLuint pos = 0;
 506    if (n >= 1<<16) { n >>= 16; pos += 16; }
 507    if (n >= 1<< 8) { n >>=  8; pos +=  8; }
 508    if (n >= 1<< 4) { n >>=  4; pos +=  4; }
 509    if (n >= 1<< 2) { n >>=  2; pos +=  2; }
 510    if (n >= 1<< 1) {           pos +=  1; }
 511    return pos;
 512 #endif
 513 }
 514
 515
 516 /**
 517  * Return 1 if this is a little endian machine, 0 if big endian.
 518  */
 519 static inline GLboolean
 520 _mesa_little_endian(void)
 521 {
 522    const GLuint ui = 1; /* intentionally not static */
 523    return *((const GLubyte *) &ui);
 524 }
 525
 526
 527
 528 /**********************************************************************
 529  * Functions
 530  */
 531
 532 extern void *
 533 _mesa_align_malloc( size_t bytes, unsigned long alignment );
 534
 535 extern void *
 536 _mesa_align_calloc( size_t bytes, unsigned long alignment );
 537
 538 extern void
 539 _mesa_align_free( void *ptr );
 540
 541 extern void *
 542 _mesa_align_realloc(void *oldBuffer, size_t oldSize, size_t newSize,
 543                     unsigned long alignment);
 544
 545 extern void *
 546 _mesa_exec_malloc( GLuint size );
 547
 548 extern void
 549 _mesa_exec_free( void *addr );
 550
 551 extern void *
 552 _mesa_realloc( void *oldBuffer, size_t oldSize, size_t newSize );
 553
 554 extern void
 555 _mesa_memset16( unsigned short *dst, unsigned short val, size_t n );
 556
 557 extern double
 558 _mesa_sqrtd(double x);
 559
 560 extern float
 561 _mesa_sqrtf(float x);
 562
 563 extern float
 564 _mesa_inv_sqrtf(float x);
 565
 566 extern void
 567 _mesa_init_sqrt_table(void);
 568
 569 #ifdef __GNUC__
 570
 571 #if defined(__MINGW32__) || defined(__CYGWIN__) || defined(ANDROID) || defined(__APPLE__)
 572 #define ffs __builtin_ffs
 573 #define ffsll __builtin_ffsll
 574 #endif
 575
 576 #define _mesa_ffs(i)  ffs(i)
 577 #define _mesa_ffsll(i)  ffsll(i)
 578
 579 #if ((__GNUC__ * 100 + __GNUC_MINOR__) >= 304) /* gcc 3.4 or later */
 580 #define _mesa_bitcount(i) __builtin_popcount(i)
 581 #define _mesa_bitcount_64(i) __builtin_popcountll(i)
 582 #else
 583 extern unsigned int
 584 _mesa_bitcount(unsigned int n);
 585 extern unsigned int
 586 _mesa_bitcount_64(uint64_t n);
 587 #endif
 588
 589 #else
 590 extern int
 591 _mesa_ffs(int32_t i);
 592
 593 extern int
 594 _mesa_ffsll(int64_t i);
 595
 596 extern unsigned int
 597 _mesa_bitcount(unsigned int n);
 598 #endif
 599
 600
 601 extern void *
 602 _mesa_bsearch( const void *key, const void *base, size_t nmemb, size_t size,
 603                int (*compar)(const void *, const void *) );
 604
 605 extern char *
 606 _mesa_getenv( const char *var );
 607
 608 extern char *
 609 _mesa_strdup( const char *s );
 610
 611 extern float
 612 _mesa_strtof( const char *s, char **end );
 613
 614 extern unsigned int
 615 _mesa_str_checksum(const char *str);
 616
 617 extern int
 618 _mesa_snprintf( char *str, size_t size, const char *fmt, ... ) PRINTFLIKE(3, 4);
 619
 620 struct gl_context;
 621
 622 extern void
 623 _mesa_warning( struct gl_context *gc, const char *fmtString, ... ) PRINTFLIKE(2, 3);
 624
 625 extern void
 626 _mesa_problem( const struct gl_context *ctx, const char *fmtString, ... ) PRINTFLIKE(2, 3);
 627
 628 extern void
 629 _mesa_error( struct gl_context *ctx, GLenum error, const char *fmtString, ... ) PRINTFLIKE(3, 4);
 630
 631 extern void
 632 _mesa_debug( const struct gl_context *ctx, const char *fmtString, ... ) PRINTFLIKE(2, 3);
 633
 634
 635 #if defined(_MSC_VER) && !defined(snprintf)
 636 #define snprintf _snprintf
 637 #endif
 638
 639
 640 #ifdef __cplusplus
 641 }
 642 #endif
 643
 644
 645 #endif /* IMPORTS_H */