kc3-lang/libxkbcommon/src/utils.h

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• Author : Daniel Stone
  Date : 2012-09-11 17:00:38
  Hash : 14cd8c79
  Message : utils: Replace DEC copyright with Ran's This is not something I do often, but I have good reason here ... utils.h has been totally rewritten since import, and now contains no original DEC content. Everything in here has been added by Ran, and I do not believe that any lingering content from previous iterations is substantial enough as to be copyrightable. Replace DEC's copyright (and license with hostile advertising clause) with Ran's boilerplate copyright and license statement. Signed-off-by: Daniel Stone <daniel@fooishbar.org>

• src/utils.h

• /*
   * Copyright © 2012 Ran Benita <ran234@gmail.com>
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the next
   * paragraph) shall be included in all copies or substantial portions of the
   * Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   * DEALINGS IN THE SOFTWARE.
   */
  
  #ifndef UTILS_H
  #define UTILS_H 1
  
  #include <stdbool.h>
  #include <string.h>
  
  /*
   * We sometimes malloc strings and then expose them as const char*'s. This
   * macro is used when we free these strings in order to avoid -Wcast-qual
   * errors.
   */
  #define UNCONSTIFY(const_ptr)  ((void *) (uintptr_t) (const_ptr))
  
  static inline bool
  streq(const char *s1, const char *s2)
  {
      return strcmp(s1, s2) == 0;
  }
  
  static inline bool
  streq_not_null(const char *s1, const char *s2)
  {
      if (!s1 || !s2)
          return false;
      return streq(s1, s2);
  }
  
  static inline bool
  istreq(const char *s1, const char *s2)
  {
      return strcasecmp(s1, s2) == 0;
  }
  
  static inline bool
  istreq_prefix(const char *s1, const char *s2)
  {
      return strncasecmp(s1, s2, strlen(s1)) == 0;
  }
  
  static inline char *
  strdup_safe(const char *s)
  {
      return s ? strdup(s) : NULL;
  }
  
  static inline bool
  isempty(const char *s)
  {
      return s == NULL || s[0] == '\0';
  }
  
  static inline const char *
  strnull(const char *s)
  {
      return s ? s : "(null)";
  }
  
  #define MIN(a, b) ((a) < (b) ? (a) : (b))
  #define MAX(a, b) ((a) > (b) ? (a) : (b))
  
  /* Compiler Attributes */
  
  #if defined(__GNUC__) && (__GNUC__ >= 4) && !defined(__CYGWIN__)
  # define XKB_EXPORT      __attribute__((visibility("default")))
  #elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
  # define XKB_EXPORT      __global
  #else /* not gcc >= 4 and not Sun Studio >= 8 */
  # define XKB_EXPORT
  #endif
  
  #if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 203)
  # define ATTR_PRINTF(x,y) __attribute__((__format__(__printf__, x, y)))
  #else /* not gcc >= 2.3 */
  # define ATTR_PRINTF(x,y)
  #endif
  
  #if (defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 205)) \
      || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
  # define ATTR_NORETURN __attribute__((__noreturn__))
  #else
  # define ATTR_NORETURN
  #endif /* GNUC  */
  
  #if (defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 296)
  #define ATTR_MALLOC  __attribute__((__malloc__))
  #else
  #define ATTR_MALLOC
  #endif
  
  #if defined(__GNUC__) && (__GNUC__ >= 4)
  # define ATTR_NULL_SENTINEL __attribute__((__sentinel__))
  #else
  # define ATTR_NULL_SENTINEL
  #endif /* GNUC >= 4 */
  
  #endif /* UTILS_H */