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Link Options

The CRT lib directory includes a number of small object files that enable specific CRT features without any code change. These are called "link options" since you just have to add them to the linker command line to use them.

Beginning in Visual C++ 2005, pure mode versions have been added. Use the regular versions for native and /clr code, use the pure versions (prefixed with a p) for /clr:pure mode.

Native and /clr

Pure mode

Description

binmode.obj

pbinmode.obj

Sets the default file-translation mode to binary. See _fmode.

chkstk.obj

n/a

Provides stack-checking and alloca support when not using the CRT.

commode.obj

pcommode.obj

Sets the global commit flag to "commit". See fopen, _wfopen and fopen_s, _wfopen_s.

fp10.obj

n/a

Changes the default precision control to 64 bits. See Floating-Point Support.

invalidcontinue.obj

pinvalidcontinue.obj

Sets a default invalid parameter handler that does nothing, meaning that invalid parameters passed to CRT functions will just set errno and return an error result.

loosefpmath.obj

n/a

Ensures that floating point code tolerates denormal values.

newmode.obj

pnewmode.obj

Causes malloc to call the new handler on failure. See _set_new_mode, _set_new_handler, calloc, and realloc.

noarg.obj

pnoarg.obj

Disables all processing of argc and argv.

nochkclr.obj

n/a

Does nothing. Remove from your project.

noenv.obj

pnoenv.obj

Disables the creation of a cached environment for the CRT.

nothrownew.obj

pnothrownew.obj

Enables the non-throwing version of new in the CRT. See The new and delete Operators.

setargv.obj

psetargv.obj

Enables command-line argument wildcard expansion. See Expanding Wildcard Arguments.

smalheap.obj

n/a

Installs a very simple small heap manager.

threadlocale.obj

pthreadlocale.obj

Enables per-thread locale for all new threads by default.

wsetargv.obj

pwsetargv.obj

Enables command-line argument wildcard expansion. See Expanding Wildcard Arguments.

See Also

Concepts

C Run-Time Libraries