Speed and execution of C and C++

[darling12]

In terms of speed, how fast is the execution time of C++/C?

[rajarora]

I dont think that C++ code will be faster than C code. Instead C code is faster than C++ code. Just see the earlier machine/assembly programs are much faster because that contains the statements which directly interfaced with OS system calls. So on same basis, I am saying that.

Regards,
Raj Kr Arora

[weaknessforcats]

I dont think that C++ code will be faster than C code. Instead C code is faster than C++ code.

In some case this might be actually true but usually C++ is faster than C. For example, the STL basic_string template class consistently outperforms the C string library.

You would beed to measure the same application coded in C and in C++.

Don't be surprised if the C++ version is completed sooner and runs faster.

[shankartshinde]

hello
The execution of c programming code faster than c++ since it C libarary more portable to contact assembly langaue .in C++ there are heavy loaded libaray eg.STL than C

[weaknessforcats]

The execution of c programming code faster than c++ since it C libarary more portable to contact assembly langaue

There is nothing in C that you can't code exactly the same way in C++.

No one says you have to use C++ feature that are not part of C.

.in C++ there are heavy loaded libaray eg.STL than C

A common misconception. Generally, basic_string is faster than the C-string library and vector has no overhead compared to the array handling code that you would have to write yourself. The difference is you write the same array code over an over whereras you just use the vector.