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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
15a5e950 LP |
2 | #pragma once |
3 | ||
15a5e950 LP |
4 | #include <printf.h> |
5 | #include <stdarg.h> | |
6 | #include <stdio.h> | |
7 | #include <sys/types.h> | |
8 | ||
9 | #include "macro.h" | |
10 | ||
73fc96c8 ZJS |
11 | #define snprintf_ok(buf, len, fmt, ...) \ |
12 | ((size_t) snprintf(buf, len, fmt, __VA_ARGS__) < (len)) | |
15a5e950 | 13 | |
73fc96c8 ZJS |
14 | #define xsprintf(buf, fmt, ...) \ |
15 | assert_message_se(snprintf_ok(buf, ELEMENTSOF(buf), fmt, __VA_ARGS__), "xsprintf: " #buf "[] must be big enough") | |
15a5e950 LP |
16 | |
17 | #define VA_FORMAT_ADVANCE(format, ap) \ | |
18 | do { \ | |
19 | int _argtypes[128]; \ | |
20 | size_t _i, _k; \ | |
21 | _k = parse_printf_format((format), ELEMENTSOF(_argtypes), _argtypes); \ | |
22 | assert(_k < ELEMENTSOF(_argtypes)); \ | |
23 | for (_i = 0; _i < _k; _i++) { \ | |
24 | if (_argtypes[_i] & PA_FLAG_PTR) { \ | |
25 | (void) va_arg(ap, void*); \ | |
26 | continue; \ | |
27 | } \ | |
28 | \ | |
29 | switch (_argtypes[_i]) { \ | |
30 | case PA_INT: \ | |
31 | case PA_INT|PA_FLAG_SHORT: \ | |
32 | case PA_CHAR: \ | |
33 | (void) va_arg(ap, int); \ | |
34 | break; \ | |
35 | case PA_INT|PA_FLAG_LONG: \ | |
36 | (void) va_arg(ap, long int); \ | |
37 | break; \ | |
38 | case PA_INT|PA_FLAG_LONG_LONG: \ | |
39 | (void) va_arg(ap, long long int); \ | |
40 | break; \ | |
41 | case PA_WCHAR: \ | |
42 | (void) va_arg(ap, wchar_t); \ | |
43 | break; \ | |
44 | case PA_WSTRING: \ | |
45 | case PA_STRING: \ | |
46 | case PA_POINTER: \ | |
47 | (void) va_arg(ap, void*); \ | |
48 | break; \ | |
49 | case PA_FLOAT: \ | |
50 | case PA_DOUBLE: \ | |
51 | (void) va_arg(ap, double); \ | |
52 | break; \ | |
53 | case PA_DOUBLE|PA_FLAG_LONG_DOUBLE: \ | |
54 | (void) va_arg(ap, long double); \ | |
55 | break; \ | |
56 | default: \ | |
57 | assert_not_reached("Unknown format string argument."); \ | |
58 | } \ | |
59 | } \ | |
9ed794a3 | 60 | } while (false) |