If one wants to get a start address of a array or a string or a block of memory via a function, there are at least two methods to achieve it:
(1) one is to pass a pointer-to-pointer parameter, like:
int my_malloc(int size, char **pmem)
{
*pmem=(char *)malloc(size);
if(*pmem==NULL)... (11 Replies)
after some years of pause, im returning to c.
char *varname = "asd";
int *number = 4;
the above code is wrong, because its assigning a value to an unreserved space, or because its changing the address the pointer is pointing ?
thanks for the replys!! (3 Replies)
1. The problem statement, all variables and given/known data:
So I have to write a Bourne script that will add two numbers, taking only two arguments and informs the user when it is used incorrectly.
2. Relevant commands, code, scripts, algorithms:
It has to be done in sh. I think overall,... (3 Replies)
#include <stdio.h>
int main(int argc, char *argv) {
printf("%d\n", sizeof(argv));
return 0;
}
when I run the executable a.out after compiling the above program as:
a.out short (or) a.out "long double", I expected to get the output as 2 and 12, but I am always getting the size of... (2 Replies)
Hello, this is probably a simple request but I've been toying with it for a while.
I have a large list of devices and commands that were run with a script, now I have lines such as:
a-router-hostname-C#show ver
I want to print everything up to (and excluding) the # and everything after it... (3 Replies)
Hi,
I am creating a program with the C language that simulates the WC command in Unix. My program needs to count lines, bytes and words. I have not added the code to count bytes and words yet. I am having trouble understanding what the file option/flag '-' does. I can not visualize how it moves... (1 Reply)
Hi All,
I am new to unix but have a requirement wherein I need to separate datatype,length, and column name from input file which is of below format --
record
integer(10) empid;
string(25) name;
date("YYYY-MM-DD") dob;
decimal(10) salary;
end
now after getting datatype,its length and... (4 Replies)
I have a sourcefile which contains data as below.I want to check whether datatype,structure and date format looks good as mentioned.
Data is delemited by cydila .
Source file-Emp.txt
sno name phoneno dept joineddate
1 vivek 0861 CSE 2013-05-29 00:00:00
2 dinesh 123456 ECE ... (2 Replies)
I have sourcefile and structure of source file,i want to check whether datatype and length mention in emp.txt is same as source file.
Example:
in emp.txt first row contains sno number so in source file also first column should contain only number if data is other than number then that... (1 Reply)
I have a sourcefile which contains data as below.I want to check whether datatype,structure and date format looks good as mentioned.
Data is delemited by cydila Ç.
Source file-Emp.txt
snoÇnameÇphonenoÇdeptÇjoineddate
1ÇvivekÇ0861ÇCSEÇ2013-05-29 00:00:00
2ÇdineshÇ123456ÇECEÇ2013-05-29 00:00:00... (8 Replies)
Discussion started by: katakamvivek
8 Replies
LEARN ABOUT MOJAVE
set_color
set_color(1) fish set_color(1)NAME
set_color - set_color - set the terminal color
set_color - set the terminal color
Synopsis
set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]
Description
Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
cyan, white and normal.
o -b, --background Set the background color
o -c, --print-colors Prints a list of all valid color names
o -h, --help Display help message and exit
o -o, --bold Set bold or extra bright mode
o -u, --underline Set underlined mode
o -v, --version Display version and exit
Calling set_color normal will set the terminal color to whatever is the default color of the terminal.
Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
font color, while set_color --bold white will result in a white font color.
Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.
set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
ncurses and recompile fish against it in order to fix this issue.
Version 1.23.1 Sun Jan 8 2012 set_color(1)