c#dll语言帮忙转换为c dll -凯发网址

请广大网友帮忙把编程语言给转换一下
        public string float_to_string(float fl)
        {
            byte[] a = bitconverter.getbytes(fl);
            return a[0].tostring("x2") a[1].tostring("x2") a[2].tostring("x2") a[3].tostring("x2");
        }
        public string float_to_string(double dl)
        {
            byte[] a = bitconverter.getbytes(dl);
            return a[0].tostring("x2") a[1].tostring("x2") a[2].tostring("x2") a[3].tostring("x2") a[4].tostring("x2") a[5].tostring("x2") a[6].tostring("x2") a[7].tostring("x2");
        }


        public float string_to_float(string f1)
        {
            byte[] a = new byte[4];
            a[0] = convert.tobyte(f1.substring(0, 2));
            a[1] = convert.tobyte(f1.substring(2, 2));
            a[2] = convert.tobyte(f1.substring(4, 2));
            a[3] = convert.tobyte(f1.substring(6, 2));
            return bitconverter.tosingle(a, 0);
        }
        public double string_to_double(string d1)
        {
            byte[] a = new byte[8];
            a[0] = convert.tobyte(d1.substring(0, 2));
            a[1] = convert.tobyte(d1.substring(2, 2));
            a[2] = convert.tobyte(d1.substring(4, 2));
            a[3] = convert.tobyte(d1.substring(6, 2));
            a[4] = convert.tobyte(d1.substring(8, 2));
            a[5] = convert.tobyte(d1.substring(10, 2));
            a[6] = convert.tobyte(d1.substring(12, 2));
            a[7] = convert.tobyte(d1.substring(14, 2));
            return bitconverter.todouble(a, 0);
        }

看上去就是十六进制的字符串与单双精浮点数的互相转换，既然你会c 应该可以按功能自己写一个

“42f6e979”<=>1.23456e 2
和
“405edd2f1a9fbe77”<=>1.23456e 2

就是这么个东西

引用

引用第1楼zlcp123于2024-03-06 09:22发表的  :
看上去就是十六进制的字符串与单双精浮点数的互相转换，既然你会c 应该可以按功能自己写一个

“42f6e979”<=>1.23456e 2
和
“405edd2f1a9fbe77”<=>1.23456e 2
.......

我会c#，不会c ，这个好像有点区别

#include
#include

std::string float_to_string(float fl)
{
    std::vector a(sizeof(float));
    memcpy(&a[0], &fl, sizeof(float));

    std::string result;
    for (unsigned char byte : a) {
        char hex[3];
        snprintf(hex, sizeof(hex), "x", byte);
        result = hex;
    }

    return result;
}

std::string float_to_string(double dl)
{
    std::vector a(sizeof(double));
    memcpy(&a[0], &dl, sizeof(double));

    std::string result;
    for (unsigned char byte : a) {
        char hex[3];
        snprintf(hex, sizeof(hex), "x", byte);
        result = hex;
    }

    return result;
}

float string_to_float(std::string f1)
{
    std::vector a(4);
    for (int i = 0; i < 4; i) {
        a = std::stoul(f1.substr(i * 2, 2), nullptr, 16);
    }

    float fl;
    memcpy(&fl, &a[0], sizeof(float));

    return fl;
}

double string_to_double(std::string d1)
{
    std::vector a(8);
    for (int i = 0; i < 8; i) {
        a = std::stoul(d1.substr(i * 2, 2), nullptr, 16);
    }

    double dl;
    memcpy(&dl, &a[0], sizeof(double));

    return dl;
}

int main()
{
    // 测试转换函数
    float f = 3.14f;
    double d = 6.28;

    std::string floathex = float_to_string(f);
    std::string doublehex = float_to_string(d);

    std::cout << "float to hex string: " << floathex << std::endl;
    std::cout << "double to hex string: " << doublehex << std::endl;

    float convertedfloat = string_to_float(floathex);
    double converteddouble = string_to_double(doublehex);

    std::cout << "hex string to float: " << convertedfloat << std::endl;
    std::cout << "hex string to double: " << converteddouble << std::endl;

    return 0;
}

引用

引用第3楼已翻身的咸鱼于2024-03-11 08:52发表的  :
#include
#include

std::string float_to_string(float fl)
{
.......

感谢大神，我只会c#的语言，c 不会，epson手臂可以支持c 的dll文件，可以做复杂的逻辑，这个是比其他手臂要强大很多了