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How can I view the statements inside a scanf() function?

+3 votes
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How can I view the statements inside a scanf() function?
posted Oct 5, 2016 by Prajwal C.m.

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2 Answers

+1 vote
 
Best answer

Hi Prajwal see this header file stdio.h at C:\Program Files (x86)\CodeBlocks\MinGW\include and after removing the preprocessors,you will find scanf() function with its statement like below :

 int scanf(const char *fmt, ...) {
  int rc;
  va_list args;

  va_start(args, fmt);

  rc = _input(stdin, fmt, args);

  return rc;
}

here it also includes stdarg.h and stddef.h where these functions used inside scanf() are defined.

answer Oct 5, 2016 by Shivam Kumar Pandey
+1 vote

scanf() function definition is inside scanf.c
scanf.c - sanos source
stdio.h contains only the function declarations
stdio.h - sanos source

answer Oct 6, 2016 by Rajat Dubey
@Rajat what is sanos source ? and where to search for scanf.c in our system?
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