what is std=c99 in compilation

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Hi,

I am trying to retrieve data from database using C in ubuntu. While compiling, i have read in a forum that std=c99 has to be used for compilation.

Could somone say what it is.

Posted 2-Nov-14 22:43pm

venkat28vk

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Kornfeld Eliyahu Peter · Accepted Answer · 2014-11-02T22:50:00

C99 is a C language standard - http://en.wikipedia.org/wiki/C99[^]
By setting the flag std=C99 you invoke GCC in a C99 compilant mode...
By default GCC does not conform to any standard (but enables all GNU specific extensions), so if you want to compile some standard code you have to set it...
http://gcc.gnu.org/onlinedocs/gcc-4.7.2/gcc/Standards.html[^]