Categories:
.NET (357)
C (330)
C++ (183)
CSS (84)
DBA (2)
General (7)
HTML (4)
Java (574)
JavaScript (106)
JSP (66)
Oracle (114)
Perl (46)
Perl (1)
PHP (1)
PL/SQL (1)
RSS (51)
Software QA (13)
SQL Server (1)
Windows (1)
XHTML (173)
Other Resources:
Why does everyone say not to use gets?
Why does everyone say not to use gets?
✍: Guest
Unlike fgets(), gets() cannot be told the size of the buffer it's to read into, so it cannot be prevented from overflowing that buffer if an input line is longer than expected--and Murphy's Law says that, sooner or later, a larger-than-expected input line will occur. (It's possible to convince yourself that, for some reason or another, input lines longer than some maximum are impossible, but it's also possible to be mistaken, and in any case it's just as easy to use fgets.)
The Standard fgets function is a vast improvement over gets(), although it's not perfect, either. (If long lines are a real possibility, their proper handling must be carefully considered.)
One other difference between fgets() and gets() is that fgets() retains the '\n', but it is straightforward to strip it out.for a code fragment illustrating the replacement of gets() with fgets().
2015-10-16, 1088👍, 0💬
Popular Posts:
What is Traceability Matrix? Traceability Matrix is one of the document will prepare by QA.To make s...
Explain all parts of a deployment diagram? Package: It logically groups element of a UML model. Node...
What is NullPointerException and how to handle it? When an object is not initialized, the default va...
How To Increment Dates by 1? - Oracle DBA FAQ - Understanding SQL Basics If you have a date, and you...
What is a measure in OLAP ? Measures are the key performance indicator that you want to evaluate. To...