cmocka_private.h

/*
 * Copyright 2008 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef CMOCKA_PRIVATE_H_
#define CMOCKA_PRIVATE_H_

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#ifndef CMOCKA_NO_STANDARD_INCLUDES
#include <stdint.h>
#endif

#ifdef _WIN32
#include <windows.h>

# ifdef _MSC_VER
# include <stdio.h> /* _snprintf */
# include <string.h> /* strtok_s */

#  undef inline
#  define inline __inline

#  ifndef va_copy
#   define va_copy(dest, src) (dest = src)
#  endif

#  define strcasecmp _stricmp
#  define strncasecmp _strnicmp
#  define strtok_r strtok_s
#  define strdup _strdup

#  if defined(HAVE__SNPRINTF_S)
#   undef snprintf
#   define snprintf(d, n, ...) _snprintf_s((d), (n), _TRUNCATE, __VA_ARGS__)
#  else /* HAVE__SNPRINTF_S */
#   if defined(HAVE__SNPRINTF)
#     undef snprintf
#     define snprintf _snprintf
#   else /* HAVE__SNPRINTF */
#    if !defined(HAVE_SNPRINTF)
#     error "no snprintf compatible function found"
#    endif /* HAVE_SNPRINTF */
#   endif /* HAVE__SNPRINTF */
#  endif /* HAVE__SNPRINTF_S */

#  if defined(HAVE__VSNPRINTF_S)
#   undef vsnprintf
#   define vsnprintf(s, n, f, v) _vsnprintf_s((s), (n), _TRUNCATE, (f), (v))
#  else /* HAVE__VSNPRINTF_S */
#   if defined(HAVE__VSNPRINTF)
#    undef vsnprintf
#    define vsnprintf _vsnprintf
#   else
#    if !defined(HAVE_VSNPRINTF)
#     error "No vsnprintf compatible function found"
#    endif /* HAVE_VSNPRINTF */
#   endif /* HAVE__VSNPRINTF */
#  endif /* HAVE__VSNPRINTF_S */
# endif /* _MSC_VER */

#ifndef PRIdS
# define PRIdS "Id"
#endif

#ifndef PRIu64
# define PRIu64 "I64u"
#endif

#ifndef PRIuMAX
# define PRIuMAX PRIu64
#endif

#ifndef PRIxMAX
#define PRIxMAX "I64x"
#endif

#ifndef PRIXMAX
#define PRIXMAX "I64X"
#endif

#ifndef PATH_MAX
#ifdef MAX_PATH
#define PATH_MAX MAX_PATH
#else
#define PATH_MAX 256
#endif /* MAX_PATH */
#endif /* PATH_MAX */

#else /* _WIN32 */

#ifndef __PRI64_PREFIX
# if __WORDSIZE == 64
#  define __PRI64_PREFIX "l"
# else
#  define __PRI64_PREFIX "ll"
# endif
#endif

#ifndef PRIdS
# define PRIdS "zd"
#endif

#ifndef PRIu64
# define PRIu64 __PRI64_PREFIX "u"
#endif

#ifndef PRIuMAX
# define PRIuMAX __PRI64_PREFIX "u"
#endif

#ifndef PRIxMAX
#define PRIxMAX __PRI64_PREFIX "x"
#endif

#ifndef PRIXMAX
#define PRIXMAX __PRI64_PREFIX "X"
#endif

#endif /* _WIN32 */

#define SAFE_FREE(x) do { if ((x) != NULL) {free(x); x=NULL;} } while(0)

#define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))

#define ZERO_STRUCTP(x) do { if ((x) != NULL) memset((char *)(x), 0, sizeof(*(x))); } while(0)

#define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))

#define BURN_STRING(x) do { if ((x) != NULL) memset((x), 'X', strlen((x))); } while(0)

#define discard_const(ptr) ((void *)((uintptr_t)(ptr)))

#define discard_const_p(type, ptr) ((type *)discard_const(ptr))

/* Cmocka does not rely on math.h, so NAN and INFINITY are handled below */

#ifndef INFINITY
# if defined(__GNUC__) || defined(__clang__)
#  define INFINITY __builtin_inff()
# else
#  define INFINITY ((float)(1e+300 * 1e+300)) /* Goes to infinity when squared */
# endif
#endif

#ifndef NAN
# if defined(__GNUC__) || defined(__clang__)
#  define NAN __builtin_nanf("")
# else
#  define NAN ((float)(INFINITY * 0.0f)) /* MSVC technique to create float NAN */
# endif
#endif

#if !defined(isnan)
static inline int cmocka_isnan(double x) {
    union { double d; uint64_t i; } u;
    u.d = x;
    /* NaN: exponent all 1s, mantissa non-zero */
    return ((u.i & 0x7FF0000000000000ULL) == 0x7FF0000000000000ULL) &&
           ((u.i & 0x000FFFFFFFFFFFFFULL) != 0);
}
# define isnan(x) cmocka_isnan(x)
#endif

#if !defined(isinf)
static inline int cmocka_isinf(double x) {
    union { double d; uint64_t i; } u;
    u.d = x;
    /* Infinity: exponent all 1s, mantissa all 0s */
    return ((u.i & 0x7FF0000000000000ULL) == 0x7FF0000000000000ULL) &&
           ((u.i & 0x000FFFFFFFFFFFFFULL) == 0);
}
# define isinf(x) cmocka_isinf(x)
#endif

#endif /* CMOCKA_PRIVATE_H_ */