c++ - stoi() CodeBlocks not working -

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i using codeblocks , can't make stoi() function work. read other questions regarding issue couldn't solve it. checked c+11, using namespace std , have string header. don't know how can solve problem. 

error: 'stoi' not declared in scope

found answer on same question here:

"it seems mingw needs patch: enabling string conversion functions in mingw"

from link can download .zip, follow instructions.

this patch enables following list of c++11 functions , templates in std namespace:

stoi, stol, stoul, stoll, stof, stod, stold, to_string, to_wstring

attention, maybe haver errors later versions, after using copy/paste:

as conduit said here:

"people should note direct replacement of files not guaranteed safe on versions later mingw gcc 4.7 - use pastebin snippets, open files, , comment/add existing files. applied such, still works fine on mingw gcc 4.8.1 afai"


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