25개 이상의 토픽을 선택하실 수 없습니다.
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
33 lines
811 B
33 lines
811 B
#include "double-conversion/double-conversion.h"
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#define BEGIN_C extern "C" {
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#define END_C }
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namespace dc = double_conversion;
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BEGIN_C
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int
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double_to_shortest(unsigned char* buf, size_t size, size_t* len, double val)
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{
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int flags = dc::DoubleToStringConverter::UNIQUE_ZERO |
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dc::DoubleToStringConverter::EMIT_POSITIVE_EXPONENT_SIGN |
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dc::DoubleToStringConverter::EMIT_TRAILING_DECIMAL_POINT |
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dc::DoubleToStringConverter::EMIT_TRAILING_ZERO_AFTER_POINT;
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dc::StringBuilder builder(reinterpret_cast<char*>(buf), size);
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dc::DoubleToStringConverter conv(flags, NULL, NULL, 'e', -6, 21, 6, 0);
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if(!conv.ToShortest(val, &builder)) {
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return 0;
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}
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*len = (size_t) builder.position();
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builder.Finalize();
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return 1;
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}
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END_C
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