Question
1) Use of wx is more efficient.
2) If w is used, old contents of file are erased and a new empty file is created. When wx is used, fopen() returns NULL if file already exists.
a.
Only 1
b.
Only 2
c.
Both 1 and 2
d.
Neither 1 nor 2
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Q. In fopen(), the open mode "wx" is sometimes preferred "w" because 1) Use of wx is more efficient. 2) If w is used, old contents of file are erased and a new empty file is...
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