StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POstring to float in gcc
text
Body
copied!<pre><code>#include <iostream> #include <stdlib.h> using namespace std; int main() { string a; cin>>a; float v=strtof(a.c_str(),NULL); cout<<v; } </code></pre> <p>The above code works in g++ compiler. But in gcc its reporting following error. </p> <pre><code>/tmp/ccz60ueB.o: In function `main': test1.cpp:(.text+0x12): undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string()' test1.cpp:(.text+0x21): undefined reference to `std::cin' test1.cpp:(.text+0x26): undefined reference to `std::basic_istream<char, std::char_traits<char> >& std::operator>><char, std::char_traits<char>, std::allocator<char> >(std::basic_istream<char, std::char_traits<char> >&, std::basic_string<char, std::char_traits<char>, std::allocator<char> >&)' test1.cpp:(.text+0x32): undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::c_str() const' test1.cpp:(.text+0x55): undefined reference to `std::cout' test1.cpp:(.text+0x5a): undefined reference to `std::basic_ostream<char, std::char_traits<char> >::operator<<(float)' test1.cpp:(.text+0x66): undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()' test1.cpp:(.text+0x81): undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()' /tmp/ccz60ueB.o: In function `__static_initialization_and_destruction_0(int, int)': test1.cpp:(.text+0xac): undefined reference to `std::ios_base::Init::Init()' test1.cpp:(.text+0xb1): undefined reference to `std::ios_base::Init::~Init()' /tmp/ccz60ueB.o:(.eh_frame+0x13): undefined reference to `__gxx_personality_v0' collect2: ld returned 1 exit status </code></pre>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload