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/*
* libdivecomputer
*
* Copyright (C) 2017 Jef Driesen
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#ifndef DC_PLATFORM_H
#define DC_PLATFORM_H
#include <stdarg.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#if defined(__GNUC__)
#define DC_ATTR_FORMAT_PRINTF(a,b) __attribute__((format(printf, a, b)))
#else
#define DC_ATTR_FORMAT_PRINTF(a,b)
#endif
#ifdef _WIN32
#define DC_PRINTF_SIZE "%Iu"
#define DC_FORMAT_INT64 "%I64d"
#else
#define DC_PRINTF_SIZE "%zu"
#define DC_FORMAT_INT64 "%lld"
#endif
#ifdef _MSC_VER
#define strcasecmp _stricmp
#define strncasecmp _strnicmp
#if _MSC_VER < 1800
// The rint() function is only available in MSVC 2013 and later
// versions. Our replacement macro isn't entirely correct, because the
// rounding rules for halfway cases are slightly different (away from
// zero vs to even). But for our use-case, that's not a problem.
#define rint(x) ((x) >= 0.0 ? floor((x) + 0.5): ceil((x) - 0.5))
#endif
#endif
int dc_platform_sleep(unsigned int milliseconds);
/*
* A wrapper for the vsnprintf function, which will always null terminate the
* string and returns a negative value if the destination buffer is too small.
*/
int dc_platform_snprintf (char *str, size_t size, const char *format, ...) DC_ATTR_FORMAT_PRINTF(3, 4);
int dc_platform_vsnprintf (char *str, size_t size, const char *format, va_list ap) DC_ATTR_FORMAT_PRINTF(3, 0);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* DC_PLATFORM_H */