#include <iostream>
#include <fstream>
#include <string>

using namespace std;

#pragma pack(push, 1)
struct person
{
    string strname;
   // char name[50];
    int age;
    double height;
};
#pragma pack(pop)


int main()
{
    person someone = { "rahul", 38, 5.6 };

    person sm2;

    string filename = "test.bin";

    ofstream outFile;
    outFile.open(filename, ios::binary);

    if(outFile.is_open())
    {
        outFile.write(reinterpret_cast<char *>(&someone),sizeof(person));
        outFile.close();
    }
    else
    {
        cout << "cannot create file : " + filename;
    }

    fstream inFile;
    inFile.open(filename, ios::binary|ios::in);

    if(inFile.is_open())
    {
        inFile.read(reinterpret_cast<char *>(&sm2), sizeof(person));
        inFile.close();
    }
    else
    {
        cout << "cannot read file : " + filename;
    }

    cout << "sm2  : age = " << sm2.age << "  sm2 : strname  = "   << sm2.strname << "  sm2 : height  " << sm2.height << endl;

    return 0;
}

[rahul@centos7client Debug]$ ./binReadAndWrtie 
sm2  : age = 38  sm2 : strname  = rahul  sm2 : height  5.6
*** Error in `./binReadAndWrtie': double free or corruption (fasttop): 0x00000000015bb010 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x81679)[0x7f3cb20aa679]
/lib64/libstdc++.so.6(_ZNSsD1Ev+0x43)[0x7f3cb29ccb63]
./binReadAndWrtie[0x40166e]
./binReadAndWrtie[0x401505]
/lib64/libc.so.6(__libc_start_main+0xf5)[0x7f3cb204b505]
./binReadAndWrtie[0x4011a9]
======= Memory map: ========
00400000-00402000 r-xp 00000000 08:02 1214883                            /opt/projects/codeblocks/c++/binaryfiles/binReadAndWrtie/bin/Debug/binReadAndWrtie
00601000-00602000 r--p 00001000 08:02 1214883                            /opt/projects/codeblocks/c++/binaryfiles/binReadAndWrtie/bin/Debug/binReadAndWrtie
00602000-00603000 rw-p 00002000 08:02 1214883                            /opt/projects/codeblocks/c++/binaryfiles/binReadAndWrtie/bin/Debug/binReadAndWrtie
015bb000-015dc000 rw-p 00000000 00:00 0                                  [heap]
7f3cac000000-7f3cac021000 rw-p 00000000 00:00 0 
7f3cac021000-7f3cb0000000 ---p 00000000 00:00 0 
7f3cb2029000-7f3cb21ec000 r-xp 00000000 08:02 1971080                    /usr/lib64/libc-2.17.so
7f3cb21ec000-7f3cb23ec000 ---p 001c3000 08:02 1971080                    /usr/lib64/libc-2.17.so
7f3cb23ec000-7f3cb23f0000 r--p 001c3000 08:02 1971080                    /usr/lib64/libc-2.17.so
7f3cb23f0000-7f3cb23f2000 rw-p 001c7000 08:02 1971080                    /usr/lib64/libc-2.17.so
7f3cb23f2000-7f3cb23f7000 rw-p 00000000 00:00 0 
7f3cb23f7000-7f3cb240c000 r-xp 00000000 08:02 2023738                    /usr/lib64/libgcc_s-4.8.5-20150702.so.1
7f3cb240c000-7f3cb260b000 ---p 00015000 08:02 2023738                    /usr/lib64/libgcc_s-4.8.5-20150702.so.1
7f3cb260b000-7f3cb260c000 r--p 00014000 08:02 2023738                    /usr/lib64/libgcc_s-4.8.5-20150702.so.1
7f3cb260c000-7f3cb260d000 rw-p 00015000 08:02 2023738                    /usr/lib64/libgcc_s-4.8.5-20150702.so.1
7f3cb260d000-7f3cb270e000 r-xp 00000000 08:02 1971088                    /usr/lib64/libm-2.17.so
7f3cb270e000-7f3cb290d000 ---p 00101000 08:02 1971088                    /usr/lib64/libm-2.17.so
7f3cb290d000-7f3cb290e000 r--p 00100000 08:02 1971088                    /usr/lib64/libm-2.17.so
7f3cb290e000-7f3cb290f000 rw-p 00101000 08:02 1971088                    /usr/lib64/libm-2.17.so
7f3cb290f000-7f3cb29f8000 r-xp 00000000 08:02 1971372                    /usr/lib64/libstdc++.so.6.0.19
7f3cb29f8000-7f3cb2bf7000 ---p 000e9000 08:02 1971372                    /usr/lib64/libstdc++.so.6.0.19
7f3cb2bf7000-7f3cb2bff000 r--p 000e8000 08:02 1971372                    /usr/lib64/libstdc++.so.6.0.19
7f3cb2bff000-7f3cb2c01000 rw-p 000f0000 08:02 1971372                    /usr/lib64/libstdc++.so.6.0.19
7f3cb2c01000-7f3cb2c16000 rw-p 00000000 00:00 0 
7f3cb2c16000-7f3cb2c38000 r-xp 00000000 08:02 1970900                    /usr/lib64/ld-2.17.so
7f3cb2dfe000-7f3cb2e03000 rw-p 00000000 00:00 0 
7f3cb2e34000-7f3cb2e37000 rw-p 00000000 00:00 0 
7f3cb2e37000-7f3cb2e38000 r--p 00021000 08:02 1970900                    /usr/lib64/ld-2.17.so
7f3cb2e38000-7f3cb2e39000 rw-p 00022000 08:02 1970900                    /usr/lib64/ld-2.17.so
7f3cb2e39000-7f3cb2e3a000 rw-p 00000000 00:00 0 
7fff32aa4000-7fff32ac6000 rw-p 00000000 00:00 0                          [stack]
7fff32b47000-7fff32b49000 r-xp 00000000 00:00 0                          [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]
Aborted (core dumped)

struct person
{
    char name[50];
    int age;
    double height;
}