INTERVIEW QUESTIONS C FUNCTIONS IN C DETAILS

Question: How to use the cprintf,cscanf,sscanf,sprintf,vsscanf,vsprintf,vscanf & vprintf?

Answer: cprintf:This function sends the formatted output to the text window on the screen.
cscanf:This function reads reads from the standard input device directly,avoiding buffering both by DOS and by the library.
sprintf: This function sends formatted output to the string.
sscanf: This function scans formatted text from the string and stores i on the variables pointed to by the arguments.
vprintf: This function sends formatted output to stdin,using an argument list.
vscanf: This function scans formatted text from stdin and stores it in the variables pointed to by the arguments.
vsprintf:This function sends formatted output to the string using argument list.
vsscanf: This function scans formatted text from the string and stores it in the variables.

cprintf:This function sends the formatted output to the text window on the screen.
cscanf:This function reads reads from the standard input device directly,avoiding buffering both by DOS and by the library.
sprintf: This function sends formatted output to the string.
sscanf: This function scans formatted text from the string and stores i on the variables pointed to by the arguments.
vprintf: This function sends formatted output to stdin,using an argument list.
vscanf: This function scans formatted text from stdin and stores it in the variables pointed to by the arguments.
vsprintf:This function sends formatted output to the string using argument list.
vsscanf: This function scans formatted text from the string and stores it in the variables. Source: CoolInterview.com

scanf(const char *format, ...);
The scanf() function reads input from the standard input stream stdin.

fscanf(FILE *stream, const char *format, ...); fscanf() reads input from the stream pointer stream.

sscanf(const char *str, const char *format, ...); sscanf() reads
its input from the character string pointed to by str.


#include <stdarg.h>

vscanf(const char *format, va_list ap);
vsscanf(const char *str, const char *format, va_list ap);
vfscanf(FILE *stream, const char *format, va_list ap);

The vfscanf() function reads input from the stream pointer stream using a variable argument list of pointers. The vscanf() function scans a variable argument list from the standard input and the vsscanf() function scans it from a string.
Source: CoolInterview.com

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