I'm trying to write a method which will return the extension of a file given the file's name, e.g. test.txt should return txt. I'm using C so am limited to char pointers and arrays. Here is the code as I have it:
I know this could return a null pointer but I'm just trying to get it working before I clean it up. I'm getting this compile warning:
Line 106 is the strcat() call. Does somebody have a simple way of adding a single character to a char pointer? I'm not a great C programmer and have never really fully understood the concept of pointers.
Hi,
char *s="yamaha";
cout<<s<<endl;
int *p;
int i=10;
p=&i;
cout<<p<<endl;
1) For the 1st "cout" we will get "yamaha" as output. That is we are getting "content of the address" for cout<<s.
2) But for integer "cout<<p" we are getting the "address only".
Please clarify how we are... (2 Replies)
Hi,
How to replace any character in a file with a newline character using sed ..
Ex:
To replace ',' with newline
Input:
abcd,efgh,ijkl,mnop
Output:
abcd
efgh
ijkl
mnop
Thnx in advance.
Regards,
Sasidhar (5 Replies)
I am writing a bash shell menu and would like to get a char immediately after a key is pressed. This script does not work but should give you an idea of what I am trying to do....
Thanks for the help
#! /bin/bash
ANSWER=""
echo -en "Choose item...\n"
until
do
$ANSWER = $STDIN
... (2 Replies)
I'm trying to run a script which will ssh to several other servers (All Solaris 10) and execute a sar -f command to get each server's CPU usage for a given hour.
It kinda works OK but I just can't figure out how to separate the returned fields with a Tab character. I've done lots of searching... (2 Replies)
The below code throws the error, since the size of x = 19 is not passed to the cstrCopy function.
using namespace std;
static void cstrCopy(char *x, const char*y);
int main ()
{
char x;
const string y = "UNIX FORUM";
cstrCopy(x,y.c_str());
return 0;
}
void cstrCopy(char *x,... (3 Replies)
Compiling xpp (The X Printing Panel) on SL6 (RHEL6 essentially):
xpp.cxx: In constructor ‘printFiles::printFiles(int, char**, int&)’:
xpp.cxx:200: error: invalid conversion from ‘const char*’ to ‘char*’
The same error with all c++ constructors - gcc 4.4.4.
If anyone can throw any light on... (8 Replies)
Task 2:
When Im tring script called char that checks a single character on the
command line, c. If the character is a digit, digit is displayed. If the
character is an upper or lowercase alphabetic character, letter is
displayed. Otherwise, other is displayed. Have the script print an
error... (0 Replies)
Pointers are seeming to get the best of me and I get that error in my program.
Here is the code
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define REPORTHEADING1 " Employee Pay Hours Gross Tax Net\n"
#define REPORTHEADING2 " Name ... (1 Reply)
I am passing a char* to the function "reverse" and when I execute it with gdb I get:
Program received signal SIGSEGV, Segmentation fault.
0x000000000040083b in reverse (s=0x400b2b "hello") at pointersExample.c:72
72 *q = *p;
Attached is the source code.
I do not understand why... (9 Replies)
Discussion started by: jose_spain
9 Replies
LEARN ABOUT PHP
fgetc
FGETC(3) 1 FGETC(3)fgetc - Gets character from file pointerSYNOPSIS
string fgetc (resource $handle)
DESCRIPTION
Gets a character from the given file pointer.
PARAMETERS
o $handle
-The file pointer must be valid, and must point to a file successfully opened by fopen(3) or fsockopen(3) (and not yet closed by
fclose(3)).
RETURN VALUES
Returns a string containing a single character read from the file pointed to by $handle. Returns FALSE on EOF.
Warning
This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on
Booleans for more information. Use the === operator for testing the return value of this function.
EXAMPLES
Example #1
A fgetc(3) example
<?php
$fp = fopen('somefile.txt', 'r');
if (!$fp) {
echo 'Could not open file somefile.txt';
}
while (false !== ($char = fgetc($fp))) {
echo "$char
";
}
?>
NOTES
Note
This function is binary-safe.
SEE ALSO fread(3), fopen(3), popen(3), fsockopen(3), fgets(3).
PHP Documentation Group FGETC(3)