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30 lines
741 B
C
30 lines
741 B
C
void foo(const char *format, ...)
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{
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va_list ap;
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int len;
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char buf[20];
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long long l = 1234567890;
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l *= 100;
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va_start(ap, format);
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len = vsnprintf(buf, 0, format, ap);
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va_end(ap);
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if (len != 5) exit(1);
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va_start(ap, format);
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len = vsnprintf(0, 0, format, ap);
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va_end(ap);
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if (len != 5) exit(2);
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if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) exit(3);
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if (snprintf(buf, 20, "%lld", l) != 12 || strcmp(buf, "123456789000") != 0) exit(4);
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if (snprintf(buf, 20, "%zu", 123456789) != 9 || strcmp(buf, "123456789") != 0) exit(5);
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if (snprintf(buf, 20, "%2\$d %1\$d", 3, 4) != 3 || strcmp(buf, "4 3") != 0) exit(6);
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if (snprintf(buf, 20, "%s", 0) < 3) exit(7);
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printf("1");
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exit(0);
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}
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main() { foo("hello"); }
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