print.h

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#ifndef LELY_UTIL_PRINT_H_
#define LELY_UTIL_PRINT_H_
 
#include <lely/libc/uchar.h>
#include <lely/util/util.h>
 
#include <stdarg.h>
#include <stddef.h>
 
#ifndef LELY_UTIL_PRINT_INLINE
#define LELY_UTIL_PRINT_INLINE static inline
#endif
 
#ifndef LENll
#ifdef _WIN32
#define LENll "I64"
#ifdef __MINGW32__
// Ignore complaints that "I64" is not a valid ISO C length modifier.
#pragma GCC diagnostic ignored "-Wformat"
#pragma GCC diagnostic ignored "-Wformat-extra-args"
#endif
#else
#define LENll "ll"
#endif
#endif
 
#ifndef LENj
#ifdef _WIN32
#define LENj LENll
#else
#define LENj "j"
#endif
#endif
 
#ifndef LENz
#ifdef _WIN32
#if __WORDSIZE == 64
#define LENz LENll
#else
#define LENz LENl
#endif
#else
#define LENz "z"
#endif
#endif
 
#ifndef LENt
#ifdef _WIN32
#if __WORDSIZE == 64
#define LENz LENll
#else
#define LENz LENl
#endif
#else
#define LENt "t"
#endif
#endif
 
#ifdef __cplusplus
extern "C" {
#endif
 
LELY_UTIL_PRINT_INLINE int otoc(int i);
 
LELY_UTIL_PRINT_INLINE int xtoc(int i);
 
size_t print_fmt(char **pbegin, char *end, const char *format, ...)
                format_printf__(3, 4);
 
size_t vprint_fmt(char **pbegin, char *end, const char *format, va_list ap)
                format_printf__(3, 0);
 
LELY_UTIL_PRINT_INLINE size_t print_char(char **pbegin, char *end, int c);
 
size_t print_utf8(char **pbegin, char *end, char32_t c32);
 
size_t print_c99_esc(char **pbegin, char *end, char32_t c32);
 
size_t print_c99_str(char **pbegin, char *end, const char *s, size_t n);
 
// clang-format off
#define LELY_UTIL_DEFINE_PRINT(type, suffix, name) \
 \
        size_t print_c99_##suffix( \
                        char **pbegin, char *end, type name);
// clang-format on
 
LELY_UTIL_DEFINE_PRINT(long, long, l)
LELY_UTIL_DEFINE_PRINT(unsigned long, ulong, ul)
LELY_UTIL_DEFINE_PRINT(long long, llong, ll)
LELY_UTIL_DEFINE_PRINT(unsigned long long, ullong, ul)
LELY_UTIL_DEFINE_PRINT(float, flt, f)
LELY_UTIL_DEFINE_PRINT(double, dbl, d)
LELY_UTIL_DEFINE_PRINT(long double, ldbl, ld)
 
LELY_UTIL_DEFINE_PRINT(int_least8_t, i8, i8)
LELY_UTIL_DEFINE_PRINT(int_least16_t, i16, i16)
LELY_UTIL_DEFINE_PRINT(int_least32_t, i32, i32)
LELY_UTIL_DEFINE_PRINT(int_least64_t, i64, i64)
LELY_UTIL_DEFINE_PRINT(uint_least8_t, u8, u8)
LELY_UTIL_DEFINE_PRINT(uint_least16_t, u16, u16)
LELY_UTIL_DEFINE_PRINT(uint_least32_t, u32, u32)
LELY_UTIL_DEFINE_PRINT(uint_least64_t, u64, u64)
 
#undef LELY_UTIL_DEFINE_PRINT
 
size_t print_base64(char **pbegin, char *end, const void *ptr, size_t n);
 
inline int
otoc(int i)
{
        return '0' + (i & 7);
}
 
inline int
xtoc(int i)
{
        i &= 0xf;
        if (i < 10)
                return '0' + i;
#if __STDC_ISO_10646__ && !__STDC_MB_MIGHT_NEQ_WC__
        return 'a' + i - 10;
#else
        switch (i) {
        case 0xa: return 'a';
        case 0xb: return 'b';
        case 0xc: return 'c';
        case 0xd: return 'd';
        case 0xe: return 'e';
        case 0xf: return 'f';
        default: return -1;
        }
#endif
}
 
inline size_t
print_char(char **pbegin, char *end, int c)
{
        if (pbegin && *pbegin && (!end || *pbegin < end))
                *(*pbegin)++ = (unsigned char)c;
        return 1;
}
 
#ifdef __cplusplus
}
#endif
 
#endif // !LELY_UTIL_PRINT_H_