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backend: define z_alloca() and use for both Unix and Windows;

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replace double-slash comments with old-skool slash asterisk ones;
  define uint16_t etc for Windows ourselves and remove ms_stdint.h &
  stdint_msvc.h as no longer used;
  (backend (excepting test suite) now C89 compatible)
LICENSE: move from backend to root and move COPYING to frontend, with
  copies in frontend_qt & backend_qt, so in where it applies;
  add LICENSE section from manual to root README
This commit is contained in:
gitlost
2022-07-14 16:01:30 +01:00
parent 5ee3895bca
commit 930f458979
70 changed files with 2650 additions and 2038 deletions
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41
backend/common.h
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@ -45,6 +45,26 @@
#define ARRAY_SIZE(x) ((int) (sizeof(x) / sizeof((x)[0])))
#endif
#ifdef _MSC_VER
# include <malloc.h>
# define z_alloca(nmemb) _alloca(nmemb)
#else
# if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199000L /* C89 */
# include <alloca.h>
# endif
# define z_alloca(nmemb) alloca(nmemb)
#endif
#ifdef _MSC_VER
typedef unsigned __int8 uint8_t;
typedef unsigned __int16 uint16_t;
typedef __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef unsigned __int64 uint64_t;
#else
#include <stdint.h>
#endif
/* `is_sane()` flags */
#define IS_SPC_F 0x0001 /* Space */
#define IS_HSH_F 0x0002 /* Hash sign # */
@ -85,16 +105,19 @@
#define ustrcat(target, source) strcat((char *) (target), (const char *) (source))
#define ustrncat(target, source, count) strncat((char *) (target), (const char *) (source), (count))
/* VC6 or C89 */
#if (defined(_MSC_VER) && _MSC_VER == 1200) || (!defined(__STDC_VERSION__) || __STDC_VERSION__ < 199000L)
# define ceilf (float) ceil
# define floorf (float) floor
# define fmodf (float) fmod
#endif
/* `round()` (C99) not before MSVC 2013 (C++ 12.0) */
#if (defined(_MSC_VER) && _MSC_VER < 1800) || (!defined(__STDC_VERSION__) || __STDC_VERSION__ < 199000L)
# define round(arg) floor((arg) + 0.5)
# define roundf(arg) floorf((arg) + 0.5f)
#endif
#ifdef _MSC_VER
# if _MSC_VER == 1200 /* VC6 */
# define ceilf (float) ceil
# define floorf (float) floor
# define fmodf (float) fmod
# endif
# if _MSC_VER < 1800 /* round (C99) not before MSVC 2013 (C++ 12.0) */
# define round(arg) floor((arg) + 0.5)
# define roundf(arg) floorf((arg) + 0.5f)
# endif
# pragma warning(disable: 4244) /* conversion from int to float */
# if _MSC_VER != 1200 /* VC6 */
# pragma warning(disable: 4996) /* function or variable may be unsafe */