what is the actual decimal numeric value of the symbol eof
End-of-file In the C Standard Library, the character reading functions such as getchar return a value equal to the symbolic value (macro) EOF to indicate that an end-of-file condition has occurred. The actual value of EOF is implementation-dependent (but is commonly -1, such as in glibc[2]) and is distinct from all valid character codes. Block-reading functions return the number of bytes read, and if this is fewer than asked for, then the end of file was reached or an error occurred (checking of errno or dedicated function, such as ferror is often required to determine which).
0 Ancient Egyptian numerals were base 10. They used hieroglyphs for the digits and were not positional. By 1770Â BC, the Egyptians had a symbol for zero in accounting texts. The symbol nfr, meaning beautiful, was also used to indicate the base level in drawings of tombs and pyramids and distances were measured relative to the base line as being above or below this line.[12]