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More reliable determination of architecture size

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If available, use c99 headers and macros to determine architecture size.
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dykeag 2020-04-15 11:17:08 -04:00 committed by GitHub
parent ca03ef2b1f
commit d05264293b
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 28 additions and 9 deletions
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37
src/lv_misc/lv_types.h
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@ -17,20 +17,26 @@ extern "C" {
/*********************
* DEFINES
*********************/
// Check windows
#ifdef _WIN64
#if __STDC_VERSION__ >= 199901L // If c99 or newer, use stdint.h to determine arch size
#include <stdint.h>
#endif
// If __UINTPTR_MAX__ or UINTPTR_MAX are available, use them to determine arch size
#if defined(__UINTPTR_MAX__) && __UINTPTR_MAX__ > 0xFFFFFFFF
#define LV_ARCH_64
#endif
/* Check GCC */
#ifdef __GNUC__
#if defined(__x86_64__) || defined(__ppc64__)
#elif defined(UINTPTR_MAX) && UINTPTR_MAX > 0xFFFFFFFF
#define LV_ARCH_64
#endif
// Otherwise use compiler-dependent means to determine arch size
#elif defined(_WIN64) || defined(__x86_64__) || defined(__ppc64__) || defined (__aarch64__)
#define LV_ARCH_64
#endif
#define LV_UNUNSED(x) (void)x;
/**********************
* TYPEDEFS
**********************/
@ -45,12 +51,24 @@ enum {
};
typedef uint8_t lv_res_t;
#if __STDC_VERSION__ >= 199901L
// If c99 or newer, use the definition of uintptr_t directly from <stdint.h>
typedef uintptr_t lv_uintptr_t;
#else
// Otherwise, use the arch size determination
#ifdef LV_ARCH_64
typedef uint64_t lv_uintptr_t;
#else
typedef uint32_t lv_uintptr_t;
#endif
#endif
/**********************
* GLOBAL PROTOTYPES
**********************/
@ -64,3 +82,4 @@ typedef uint32_t lv_uintptr_t;
#endif
#endif /*LV_TYPES_H*/