vscode C++配置MPFR大数库

Question

vscode C++配置MPFR大数库，下载好文件，该怎么配置到系统环境

Answer 1

如果是编译好的, 直接include 头文件, 链接库文件就行了.

#include <gmp.h>
#include <mpfr.h>
#include <stdio.h>

int main(void)
{
    unsigned int i;
    mpfr_t s;
    mpfr_t t;
    mpfr_t u;

    mpfr_init2(t, 200);
    mpfr_set_d(t, 1.0, MPFR_RNDD);
    mpfr_init2(s, 200);
    mpfr_set_d(s, 1.0, MPFR_RNDD);
    mpfr_init2(u, 200);
    for (i = 1; i <= 100; i++)
    {
        mpfr_mul_ui(t, t, i, MPFR_RNDU);
        mpfr_set_d(u, 1.0, MPFR_RNDD);
        mpfr_div(u, u, t, MPFR_RNDD);
        mpfr_add(s, s, u, MPFR_RNDD);
    }
    printf("Sum is ");
    mpfr_printf("%.128Rf", s);
    putchar('\n');
    mpfr_clear(s);
    mpfr_clear(t);
    mpfr_clear(u);
    mpfr_free_cache();
    return 0;
}

编译参数加上lib, include地址
clang.exe -glldb -std=gnu11 -lgmp -lmpfr test283.c -o test283.exe

如果不会最好还是用资源工具包, 比如msys2