stdin - fgets() function in C - Stack Overflow
Another one is using FILE structures which are used in C library functions like fread(), fwrite() etc including the one you mentioned above. As it is with the UNIX philosophy, everything is a file. So even the standard input (stdin) is treated as a pointer to a FILE structure. tl;dr Yes, you should use stdin for FILE* stream in your call to fgets()
c - How to read from stdin with fgets ()? - Stack Overflow
Feb 26, 2014 · @johngonidelis a string is stored as a series of the ascii value of the characters, with a single character at the end with the binary value '0'. strlen() only counts the actual letters, but when you lay out space for your own string, you …
c - Reading from file using fgets - Stack Overflow
If a read has been successful, fgets returns the pointer to the buffer that you passed to it (i.e. string in your example). If the End-of-File is encountered and no characters have been read, fgets returns NULL .
How to take ints from user using fgets in C? - Stack Overflow
Sep 15, 2015 · I'm a beginner at C. I'm trying to write a program that computes the volume based on user's input of 3 integers using fgets(), and I'm struggling to understand why my code is not working. #include...
c - using fgets with structure - Stack Overflow
Mar 17, 2021 · You are mixing formatted input (scanf) with line-wise input (fgets). After reading the roll number, the "return" that you entered was not read. Intractive input (prompt: input; prompt: input) is a bit tricky with C. A two-step approach could work: Read every input line with fgets, then parse it with sscanf. –
C - scanf () vs gets () vs fgets () - Stack Overflow
Jul 10, 2015 · The standard C library specification explicitly says (§7.1.4 Use of library functions): If an argument to a function has an invalid value (such as a value outside the domain of the function, or a pointer outside the address space of the program, or a null pointer, or a pointer to non-modifiable storage when the corresponding parameter is not ...
c - How do I get fgets to receive user input? - Stack Overflow
This newline character is fetched by fgets(), which stops consuming input from stdin until it encounters a newline. The result is that only the \n newline character is taken by the call to fgets(). To catch the abandoned newline you could either use getchar(); or scanf("%*c"); before the call to fgets(): scanf("%s", rating); printf("\nYou said %s.
c - How do I use multiple fgets without them interfering with each ...
Feb 15, 2023 · It is generally a good idea to check the return value of fgets before using the result of fgets. For example, if the user signals end-of-file on an empty line by pressing CTRL-D on Linux or CTRL-Z on Windows, then fgets will return NULL and will …
Reading text-file until EOF using fgets in C - Stack Overflow
Aug 16, 2016 · fgets will return a pointer to line on success, or NULL on failure (for whatever reason). A valid pointer will test true and, of course, NULL will test false . ( note: you must insure that line is a character array declared in scope to use sizeof line as the length.
c - fgets () reading numbers to space - Stack Overflow
Nov 19, 2013 · Alternatively, you can use fscanf() in the first place, with format "%s" to read a string from the file. fscanf() will stop reading upon reaching a separator (space, new line, etc). Check the string read and if it contains a valid number, use sscanf() or atoi() to convert it into a numeric value. I've come up with this code: