Question-71. Name a function which can be used to close the file stream ?
Answer- fclose().
Question-72. What is the purpose of #undef preprocessor ?
Answer- It be used to undefine an existing macro definition.
Question-73. Define a structure ?
Answer- A structure can be defined of collection of heterogeneous data items.
Question-74. Name the predefined macro which be used to determine whether your compiler is ANSI standard or not ?
Answer- __STDC__
Question-75. What is typecasting ?
Answer- Typecasting is a way to convert a variable/constant from one type to another type.
Question-76. What is recursion ?
Answer- Function calling itself is called as recursion.
Question-77. Which function can be used to release the dynamic allocated memory ?
Answer- free().
Question-78. What is the first string in the argument vector w.r.t command line arguments ?
Answer- Program name.
Question-79. How can we determine whether a file is successfully opened or not using fopen() function ?
Answer- On failure fopen() returns NULL, otherwise opened successfully.
Question-80. What is the output file generated by the linker ?
Answer- Linker generates the executable file.