Answer / vijay visana

The #pragma directives offer a way for each compiler to
offer machine- and operating-system-specific features while
retaining overall compatibility with the C and C++
languages. Pragmas are machine- or operating-system-
specific by definition, and are usually different for every
compiler.

Answer / wizards

Some operating systems and compilers offers some different
features say align of data etc, and will not work on others.
To work these special features on specific OS/compilres and
should get the functionality of program on others we will
use #pragma directive

Answer / saurabh srivastava

pragma is a pre processor directive thaat helps to perform
some compiler specific task, like turbo c allows to write
assembly language in c compiler,
pragma differs, system to system.

Answer / vishal kumar jaiswal

it is compiler dependent preprocessor i.e all the compiler are does not support this preprocessor.
some #pragma are used here this purpose
#pragma warn -rvl // retruns value warning
#pragma warn -par // parameter not used warning
#pragma warn -rch //unreachable code warning

Answer / sahadev tarei

for bit pading it is used.after compilation the compiler
takes some extra bits.for elimeting that bit we required #progma

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