Re: [linux-audio-dev] [ot] [rant] gcc, you let me down one time toomany

On 6/9/05, Erik de Castro Lopo &lt;erikd-lad(a)mega-nerd.com&gt; wrote: No, I am not. I cannot find the information on the C++ faq right now, but If m pretty sure that it is written in the book of Stroustrup. I did a small test mself: if you check the assembly code of g++ for the functions void c_array(int * a) { a[5] } void vector(vector<int> a) { a[5] } void vector(vector<int> a) { a.at(5) } you will see that the assembly code for c_array and vector are quite similar ( I don't know much about assembly, but here is the output of g++ -O3 -S for c_array : .file "c_array.cpp" .text .align 2 .p2align 4,,15 .globl _Z7c_arrayPi .type _Z7c_arrayPi, @function _Z7c_arrayPi: .LFB529: pushl %ebp .LCFI0: movl %esp, %ebp .LCFI1: movl 8(%ebp), %edx movl $0, 20(%edx) popl %ebp ret .LFE529: .size _Z7c_arrayPi, .-_Z7c_arrayPi .weak pthread_mutex_unlock .weak pthread_mutex_trylock .weak pthread_mutex_lock .weak pthread_create .weak pthread_setspecific .weak pthread_getspecific .weak pthread_key_delete .weak pthread_key_create .weak pthread_once .section .note.GNU-stack,"",@progbits .ident "GCC: (GNU) 3.3.6 (Debian 1:3.3.6-5)" and for void vector(vector<int> v) .file "vector.cpp" .text .align 2 .p2align 4,,15 .globl _Z6vectorSt6vectorIiSaIiEE .type _Z6vectorSt6vectorIiSaIiEE, @function _Z6vectorSt6vectorIiSaIiEE: .LFB539: .L2: .L7: pushl %ebp .LCFI0: movl %esp, %ebp .LCFI1: popl %ebp ret .LFE539: .size _Z6vectorSt6vectorIiSaIiEE, .-_Z6vectorSt6vectorIiSaIiEE .weak pthread_mutex_unlock .weak pthread_mutex_trylock .weak pthread_mutex_lock .weak pthread_create .weak pthread_setspecific .weak pthread_getspecific .weak pthread_key_delete .weak pthread_key_create .weak pthread_once .section .note.GNU-stack,"",@progbits .ident "GCC: (GNU) 3.3.6 (Debian 1:3.3.6-5)" The assembly code using at() instead of [] is much longer. Cheers, David