You have to focus in the double loop you have there: EOF stands for End Of File, so the first loop will continue until the end of the file is found, i.e. until the file pointer reaches the end of the file. Now remember that your file has data like this: Steve Stevenson 2 9 … Read more
I need a function from the standard library that replaces all occurrences of a character in a string by another character. I also need a function from the standard library that replaces all occurrences of a substring in a string by another string. I need a function from the standard library that replaces all occurrences … Read more
Try: 0 – Left-pads the number with zeroes (0) instead of spaces, where padding is specified. 4 (width) – Minimum number of characters to be printed. If the value to be printed is shorter than this number, the result is right justified within this width by padding on the left with the pad character. By default this … Read more
EOF is not a character (in most modern operating systems). It is simply a condition that applies to a file stream when the end of the stream is reached. The confusion arises because a user may signal EOF for console input by typing a special character (e.g Control-D in Unix, Linux, et al), but this character is not … Read more
Use the %lf format specifier to read a double: Wikipedia has a decent reference for available format specifiers. You’ll need to use the %lf format specifier to print out the results as well:
Update Building the latest trunk of LLVM/Clang (clang-3.8), installing libiomp5, and specifying the location of the gomp omp header files worked. Note that the Ubuntu package for libiomp5 isn’t quite correct, so you will need to add a symlink in /usr/lib from /usr/lib/libiomp5.so to /usr/lib/libiomp5.so.5. I’m using g++-5.1 and clang++-3.6 on Linux Mint 17.2 (essentially … Read more
As I can understand from your assignment statement in while loop I think you need array of strings instead: Note: By doing = in while loop as below: you are just assigning address of string (its not deep copy), but because you are also writing “only address of strings” so I think this is what you wants. … Read more
Do it like this: Note: strtok modifies the string its tokenising, so it cannot be a const char*.
According to the Single Unix Specification, malloc will return NULL and set errno when it fails.
The code seems to miss to NULL-terminate arrays[k]. Make the last entry in arrays[k] carry NULL. Update: This should be of even more straight forward just: as the members of the exec*()-family of functions return on error only.