Nov 30, 2019 · It's worth mentioning that the likely purpose of this code, especially when used with %s, is to print a sub-string of the original string. In this use case, str would point to …

Sep 2, 2017 · * Causes fprintf to pad the output until it is n characters wide, where n is an integer value stored in the a function argument just preceding that represented by the modified type. …

Nov 11, 2022 · Using %s in scanf without an explcit field width opens the same buffer overflow exploit that gets did; namely, if there are more characters in the input stream than the target …

sed 's/\n//' file # to delete newlines from each line sed 's/\n/foo\n/' file # to add a word to the end of each line will NEVER work, because the trailing newline is removed before the line is put into …

Feb 12, 2015 · sscanf(s, "%d %n", &i, &n) == 1 will be true. Therefore the other part of the && expression will execute. And s[n] will access some random place in memory because n is …

May 14, 2017 · If you open the file in binary mode \n will give you a "unix style" line ending and "\r\n" will give you a "dos style" line ending. If you open the file in "text" mode on a …

Dec 6, 2012 · That is: \s matches a space( ) or a tab(\t) or a line(\n) break or a vertical tab(\x0B sometimes referred as \v) or a form feed(\f) or a carriage return(\r) . \\s*,\\s* It says zero or …

Aug 29, 2021 · The %*s usage in the printf format string prints a %s specifier (in this case the empty string "") using a field width of n characters. An explanation of basic printf principles is …

name = 0xbff5391b &name[0] = 0xbff5391b name printed as %s is siva *name = s name[0] = s So 'name' is actually a pointer to the array of characters in memory. If you try reading the first four …

N Dice problem with Sum and Disivibility Has Russia ever explained its U-turn on going to war with Ukraine? Roughly, can you make smooth groups by filling holes in discrete groups?