about g++ and some defined struct

what is the search path of g++ in searching paths?
for example /usr/include/c++/3.2/
what is all the all teh folders it search ?and how to know them?
is there a variable having all of it?


also in codei see some defined struct somewhere..but i want to see the defination of these struct, where is teh header conating it ?
off_t
mode_t
size_t
uintmax_t

To know that which file it is using, you can use "which" command.
e.g. fire "which g++" and it will let you know the path of g++ binary.
It will display nothing, if it fails to find g++ binary.

i don't want to know the binary teh program use...i want to know teh header files it search..

Quote:

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i don't want to know the binary teh program use...i want to know teh header files it search..

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In general you can use grep:

man grep
http://www.gnu.org/software/grep/grep.html

Most standard types (with _t) are appropriatly in sys/types.h.

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