... Table of Signals
C
TABLE C. 1 LISTS SOME OF THE LINUX SIGNALS YOU’RE MOST LIKELY to encounter or
use. Note that some signals have multiple interpretations, depending on where they
occur.
The ... the following:
% man 7 signal
Table C. 1 Linux Signals
Name Description
SIGHUP Linux sends a process this signal when it becomes disconnected
from a terminal. Many Linux...
... compiler checks that the C expression for each output
operand is in fact an lvalue.
Letters specifying registers for a particular architecture can be found in the
GCC source code, in the
REG_CLASS_FROM_LETTER ... other Linux source code files in /usr/src /linux/ arch/ and
/usr/src /linux/ drivers/.
Assembly instructions can also speed the innermost loop of computer programs.
For exampl...
... character constant ’\n’, which has ASCII code 10. On Windows, however, lines are sepa-
rated by a two-character combination: a carriage return character (the character ’\r,’ which has ASCII
code ... you close a file descriptor for a
network socket, Linux closes the network connection between the two computers
communicating through the socket.
Linux limits the number of open file descrip...
... at
http://www.newriders.com.
n
http://www.linuxdoc.org is the home of the Linux Documentation Project.
This site is a repository for a wealth of documentation, FAQ lists, HOWTOs,
and other documentation about GNU /Linux ... Here, you can download the full text of this book and program source
code, find links to other online resources, and get more information about pro-
gramming GNU /...
... the modifications
must be dated.
3. Acknowledgement of the original author and publisher, if applicable, must be
retained according to normal academic citation practices.
4. The location of the ... document may elect cer-
tain options by appending language to the reference to or copy of the license.These
options are considered part of the license instance and must be included with the...
... distribution of executable or object code is made by offering access to copy
from a designated place, then offering equivalent access to copy the source code
from the same place counts as distribution of ... allowed only for
noncommercial distribution and only if you received the program in
object code or executable form with such an offer, in accord with
Subsection b above.)
The source c...
... reciprocal.o
g++ $(CFLAGS) -o reciprocal main.o reciprocal.o
main.o: main .c reciprocal.hpp
gcc $(CFLAGS) -c main .c
reciprocal.o: reciprocal.cpp reciprocal.hpp
g++ $(CFLAGS) -c reciprocal.cpp
clean:
rm ... compilers of choice on Linux systems are all part of the GNU
Compiler Collection, usually known as GCC.
3
GCC also include compilers for C,
C+ +, Java, Objective -C, Fortran, a...
... which you need to specify explicitly. For
example, to compile and link a program compute .c which uses trigonometric func-
tions such as sin and cos, you must invoke this code:
% gcc -o compute compute .c ... test preconditions
and postconditions of function calls (and method calls, in C+ +), and to test for unex-
pected return values.
Each use of assert serves not only as a runtime ch...
... kill function.
By convention, the exit code is used to indicate whether the program executed
correctly.An exit code of zero indicates correct execution, while a nonzero exit code
indicates that ... variable. */
child_exit_status = status;
}
int main ()
{
/* Handle SIGCHLD by calling clean_up_child_process. */
struct sigaction sigchld_action;
memset (&sigchld_action, 0, sizeof (sigchld_a...