Required knowledge. Basic C programming, Loop, String. Must know - Program to find length of string Logic to convert lowercase string to uppercase. Internally in C every characters are represented as an integer value known as ASCII value.Where A is represented with 65 similarly, B with 66. Below is the step by step descriptive logic to convert string to uppercase.
Read and Print String in C. To print any string in C programming, use printf() function with format specifier %s as shown here in the following program. To scan or get any string from user, you can use either scanf() or gets() function.
Internally, the function accesses the output sequence by first constructing a sentry object. Then (if good), it inserts character into its associated stream buffer object as if calling its member functions sputc or sputn until n characters have been written or until an insertion fails (in this case it sets the badbit flag). Finally, it destroys the sentry object before returning.
Read and Write Character in C We can read and write a character on screen using printf() and scanf() function but this is not applicable in all situations. In C programming language some function are available which is directly read a character or number of character from keyboard.
C Language: puts function (Write String) In the C Programming Language, the puts function writes a string (and then a new-line characters) to the stdout stream.
C program to copy a string using pointers. Function to copy a string using pointers.
All forms are perfectly valid. Note the use of const, because from the function I’m returning a string literal, a string defined in double quotes, which is a constant. Note that you can’t modify a string literal in C. Another thing to keep in mind is that you can’t return a string defined as a local variable from a C function, because the variable will be automatically destroyed.
Learn strings in C. Learn about different pre defined functions like strlen, strcat, strcpy, strlwr, strupr, etc. Learn pointers to string. Start with basics and ask your doubts.