mikroSDK Reference Manual
lv_printf.h
1
2// \author (c) Marco Paland (info@paland.com)
3// 2014-2019, PALANDesign Hannover, Germany
4//
5// \license The MIT License (MIT)
6//
7// Permission is hereby granted, free of charge, to any person obtaining a copy
8// of this software and associated documentation files (the "Software"), to deal
9// in the Software without restriction, including without limitation the rights
10// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11// copies of the Software, and to permit persons to whom the Software is
12// furnished to do so, subject to the following conditions:
13//
14// The above copyright notice and this permission notice shall be included in
15// all copies or substantial portions of the Software.
16//
17// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23// THE SOFTWARE.
24//
25// \brief Tiny printf, sprintf and snprintf implementation, optimized for speed on
26// embedded systems with a very limited resources.
27// Use this instead of bloated standard/newlib printf.
28// These routines are thread safe and reentrant.
29//
31
32/*Original repository: https://github.com/mpaland/printf*/
33
34#ifndef _LV_PRINTF_H_
35#define _LV_PRINTF_H_
36
37#if defined(__has_include)
38 #if __has_include(<inttypes.h>)
39 #include <inttypes.h>
40 /* platform-specific printf format for int32_t, usually "d" or "ld" */
41 #define LV_PRId32 PRId32
42 #define LV_PRIu32 PRIu32
43 #else
44 #define LV_PRId32 "d"
45 #define LV_PRIu32 "u"
46 #endif
47#else
48 /* hope this is correct for ports without __has_include or without inttypes.h */
49 #define LV_PRId32 "d"
50 #define LV_PRIu32 "u"
51#endif
52
53#ifdef __cplusplus
54extern "C" {
55#endif
56
57#include "../lv_conf_internal.h"
58
59#if LV_SPRINTF_CUSTOM == 0
60
61#include <stdarg.h>
62#include <stddef.h>
63
64#include "lv_types.h"
65
66typedef struct {
67 const char * fmt;
68 va_list * va;
70
81int lv_snprintf(char * buffer, size_t count, const char * format, ...) LV_FORMAT_ATTRIBUTE(3, 4);
82int lv_vsnprintf(char * buffer, size_t count, const char * format, va_list va) LV_FORMAT_ATTRIBUTE(3, 0);
83
84#else
85#include LV_SPRINTF_INCLUDE
86#endif
87
88#ifdef __cplusplus
89} /*extern "C"*/
90#endif
91
92#endif // _LV_PRINTF_H_
Definition lv_printf.h:66