From C/C++ to NASM src

I need to develope some algorithms that are really easy to do with a hig level language as C or C++, but become really hard to write directly as NASM istructions.

Since basically a C and C++ compiler have to use low level istructions to produce binaries, is there a simple way to obtain the NASM code from C\C++ programs.

From man gcc:

-S

Stop after the stage of compilation proper; do not assemble. The output is in the form of an assembler code file for each non-assembler input file specified.

By default, the assembler file name for a source file is made by replacing the suffix .c, .i, etc., with .s.

gcc -S hello.c should create file hello.s with corresponding assembler code.

Works for g++ too. Other compilers probably have similar option.

---

For example, for this program (hello.c):

#include <stdio.h>

int main() {
    printf("Hello, world! %d\n", 6*7);
    return 0;
}

The output (hello.s) contains this:

        .file   "hello.c"
        .section        .rodata
.LC0:
        .string "Hello, world! %d\n"
        .text
        .globl  main
        .type   main, @function
main:
.LFB0:
        .cfi_startproc
        pushq   %rbp
        .cfi_def_cfa_offset 16
        .cfi_offset 6, -16
        movq    %rsp, %rbp
        .cfi_def_cfa_register 6
        movl    $42, %esi
        movl    $.LC0, %edi
        movl    $0, %eax
        call    printf
        movl    $0, %eax
        popq    %rbp
        .cfi_def_cfa 7, 8
        ret
        .cfi_endproc
.LFE0:
        .size   main, .-main
        .ident  "GCC: (Debian 4.7.2-5) 4.7.2"
        .section        .note.GNU-stack,"",@progbits