How to use the gcc installed in macports?

I installed gcc 4.6. from macports (for support of C++0x). But when I check the 'gcc --version` it is showing older version. How to use the newer gcc installed by macports?

Solution

I remember it being something like g++-mp-4.6. I believe it's enough to set the environment variable CXX to that.

Expose only required functions in C
Different compilers... Will I need to install redistributable libraries for all?
Linker and Memory map for shared memory in autosar embedded environment
Comparison between a pointer and an integer in C
Why do the 32-bit and 64-bit Compiled Versions of this Program Populate Memory in this Way?
How can the Linux kernel compile itself?
How do I compile the asm generated by GCC?
strcmp with pointers not working in C
Compiler Error when using a struct
How to enforce the struct bit order with the GCC compiler?
In C, extract mantissa of a double as a long long in portable way
Why is sizeof(HEADER_SIZE) = 4 when it was initialized as 44?
"Palindrome recursive function" detects palindromes right but doesn't behave as expected
what is the reason for explicitly declaring L or UL for long values
TCP/IP Programming in C
Is this unstable behavior of execve after vfork a gcc bug?
Is a char array more efficient than a char pointer in C?
"incompatible pointer type" compiling in C
CLion won't show output in Debug
math.h ceil not working as expected in C
Why aren't fixed-point types included in C99?
What defines an opaque type in C, and when are they necessary and/or useful?
What's the point of VLA anyway?
Using poll() for a TCP server in C
Can I tell what version of Visual Studio was used to build a DLL by examining the DLL itself
Handling multiple byte lengths within a WAV struct
How do I check OS with a preprocessor directive?
What is the default encoding for C strings?
cross platform unit testing in C
Setting LED value using one integer changes another integer