fscanff

Fscanff is not a standard function in the C language or its common libraries. The name may be a misspelling of fscanf, or it may refer to a project- or library-specific function defined in a particular codebase. Because there is no universal definition, the behavior and interface of fscanff can vary between implementations.

If a codebase defines fscanff as a wrapper around the standard fscanf, its prototype would typically resemble int fscanff(FILE *stream, const char *format, ...); and it would read input from the given FILE* stream according to the format string, assigning values to the provided variables. The return value would follow the fscanf convention: the number of input items successfully assigned, or EOF on error or end of file. Variadic arguments must correspond to the format specifiers, and the function may add project-specific error handling, logging, or input validation.

Because fscanff is not standardized, its exact semantics—such as error reporting, threading behavior, or security features—are defined by the library or code that implements it. Users encountering fscanff should consult the relevant documentation or header files in the codebase to determine its precise contract and safety considerations. In general, developers should be mindful of common input risks associated with formatted input functions, including mismatched format specifiers and potential format-string vulnerabilities, and prefer portable or secure alternatives when available (for example, using standard fscanf, fscanf_s in environments that provide it, or safer input routines).

See also fscanf, fscanf_s, sscanf, and general documentation on formatted input in stdio.