fmode_initializer.cpp File Reference

#include <corecrt_internal.h>

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Functions
int __cdecl	__acrt_initialize_fmode ()
	_CRTALLOC (".CRT$XIC") _PIFV const __acrt_fmode_initializer

Function Documentation

__acrt_initialize_fmode()

int __cdecl __acrt_initialize_fmode

(

)

Definition at line 27 of file txtmode.cpp.

{
    // The initial mode for _fmode is initialized during pre_c_initializer() in vcstartup, so that it can be overridden with a linkopt.
    // The default value is provided by _get_startup_file_mode(), but this value is not used to initialize both _fmode states.
    // (ex: if exe is Prog-Mode, OS-Mode _fmode is uninitialized, if exe is OS-Mode, Prog-Mode _fmode is uninitialized)
 
    // To fix this, we adjust zero-value _fmode to _O_TEXT, since that is the default.
    // Only the exe can use the linkopt, so the state that is not being initialized could not have requested _O_BINARY.
 
    int * const fmode_states = _fmode.dangerous_get_state_array();
    for (unsigned int i = 0; i != __crt_state_management::state_index_count; ++i)
    {
        int& fmode_state = fmode_states[i];
        if (fmode_state == 0)
        {
            fmode_state = _O_TEXT;
        }
    }
 
    return 0;
}

_CRTALLOC()

_CRTALLOC

(

".CRT$XIC"

)

const