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34 lines
701 B
C
34 lines
701 B
C
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#include <kernaux/printf.h>
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#include <assert.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#define BUFFER_SIZE 1024
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static const char *const data = "foobar";
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static char buffer[BUFFER_SIZE];
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static size_t buffer_index = 0;
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static void my_putchar(const char chr, void *const arg)
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{
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assert(arg == data);
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if (buffer_index >= BUFFER_SIZE) abort();
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buffer[buffer_index++] = chr;
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}
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void example_main()
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{
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const int result = kernaux_fprintf(
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my_putchar,
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(void*)data,
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"Hello, %s! Session ID: %u.",
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"Alex",
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123
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);
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assert((size_t)result == strlen(buffer));
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assert(strcmp(buffer, "Hello, Alex! Session ID: 123.") == 0);
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}
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