the function FILE

[youbo]

like this:FILE*in ,what does it mean? and the function is include in which file?

[jhwurmbach]

in is a variable of type "pointer to FILE" FILE is defined in stdio.h

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[toxcct]

this is not a function (but probably that you didn't provide full informations). FILE is a structure defined in the CRT, used for files operations. FILE* is a pointer to a FILE. mainly, when you have to use files, you first open it (with fopen() for instance). such a function returns a FILE*. then, you may want to read, write, move inside and close your file freshly opened. all the function that perform such an action get a FILE* parameter... more question ? :)

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