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#include <print.h>
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#include <print.h>
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#include <printf/printf_core.h>
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#include <printf/printf_core.h>
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#include <string.h>
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#include <string.h>
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#include <memstr.h>
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#include <memstr.h>
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#include <errno.h>
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typedef struct {
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typedef struct {
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    size_t size;    /* Total size of the buffer (in bytes) */
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    size_t size;    /* Total size of the buffer (in bytes) */
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    size_t len;     /* Number of already used bytes */
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    size_t len;     /* Number of already used bytes */
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    char *dst;      /* Destination */
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    char *dst;      /* Destination */
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        index_t index = 0;
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        index_t index = 0;
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        while (index < size) {
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        while (index < size) {
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            wchar_t uc = chr_decode(str, &index, size);
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            wchar_t uc = chr_decode(str, &index, size);
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            if (!chr_encode(uc, data->dst, &data->len, data->size - 1))
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            if (chr_encode(uc, data->dst, &data->len, data->size - 1) != EOK)
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                break;
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                break;
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        }
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        }
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        /* Put trailing zero at end, but not count it
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        /* Put trailing zero at end, but not count it
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         * into data->len so it could be rewritten next time
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         * into data->len so it could be rewritten next time
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            data->dst[data->size - 1] = 0;
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            data->dst[data->size - 1] = 0;
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            data->len = data->size;
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            data->len = data->size;
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            return ((int) size);
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            return ((int) size);
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        }
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        }
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        if (!chr_encode(str[index], data->dst, &data->len, data->size - 1))
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        if (chr_encode(str[index], data->dst, &data->len, data->size - 1) != EOK)
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            break;
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            break;
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        index++;
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        index++;
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    }
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    }
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