std::vector debug and release build using g++

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GCC STL bound checking

Is there something like a automatic debug version of the std:vector in the g++ STL and if not how could I achive one?

What I want is to specify a debug parameter in my g++ call for example:

g++ -D DEBUG_ main.cpp

When this parameter is defined I want all my std::vectors to check their boundarys when accesing an element, the way when using vector::at().

When the parameter is omitted I want all vectors to behave as if the normal [] operator is used, meaning no performance is "wasted" for boundary checking.

I heard that VC++ does something like this. So my question is how to to this using the g++?

I wouldn't be too concerned about the performance waste from using `at` over `operator[]`. — chris, May 14 '12 at 13:37

score 8 · Accepted Answer · edited Apr 03 '14 at 07:53

8

The flag you want is -D_GLIBCXX_DEBUG

More debug options for libstdc++ can be found at:

http://gcc.gnu.org/onlinedocs/libstdc++/manual/debug_mode_using.html#debug_mode.using.mode

edited Apr 03 '14 at 07:53

vkrnt

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answered May 14 '12 at 13:38

Dave S

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score 0 · Answer 2 · answered May 14 '12 at 13:40

0

in debug mode you can have additional assertion and checking, but using at() or [] it's always on your side.

at() - throws out_of_bounds exception, [] - don't

answered May 14 '12 at 13:40

triclosan

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std::vector debug and release build using g++

2 Answers2