errno.h is a header file in the standard library of the C programming language. It defines macros for reporting and retrieving error conditions using...
11 KB (1,399 words) - 14:14, 21 October 2023
C standard library (redirect from Stdlib.h)
not all) functions raise exceptions on errors. Some also set errno. A few functions set errno, but do not raise an exception. A very few functions do neither...
29 KB (2,875 words) - 23:17, 26 March 2024
Berkeley sockets (redirect from Socket.h)
#include <stdio.h> #include <errno.h> #include <string.h> #include <sys/socket.h> #include <sys/types.h> #include <netinet/in.h> #include <unistd.h> /* for close()...
29 KB (3,515 words) - 20:27, 17 August 2024
and values of error codes. Examples include: Unix-like systems have an errno.h header file that contains the meanings and values of error codes returned...
5 KB (638 words) - 02:30, 24 June 2024
computing, "Not a typewriter" or ENOTTY is an error code defined in the errno.h found on many Unix systems. This code is now used to indicate that an invalid...
5 KB (605 words) - 11:15, 24 August 2024
in a project to include at least one .h file: the standard header file errno.h is an example, making the errno variable accessible to all modules in a...
10 KB (1,299 words) - 02:48, 10 December 2023
In the C and C++ programming languages, unistd.h is the name of the header file that provides access to the POSIX operating system API. It is defined...
13 KB (302 words) - 13:12, 9 February 2024
operating system (in this case, errno.h), while the underlying system calls have succeeded and report no errors (in this case, errno == 0). This is a form of...
14 KB (1,828 words) - 18:27, 3 September 2024
stdarg.h is a header in the C standard library of the C programming language that allows functions to accept an indefinite number of arguments. It provides...
11 KB (1,307 words) - 14:42, 24 January 2024
assert.h is a header file in the C standard library. It defines the C preprocessor macro assert and implements runtime assertion in C. assert.h is defined...
7 KB (779 words) - 21:51, 9 June 2023
C++ Standard Library (redirect from Stdexcept.h)
also incorporates most headers of the ISO C standard library ending with ".h", but their use was deprecated (reverted the deprecation since C++23). C++23...
23 KB (2,404 words) - 04:39, 6 January 2024
<assert.h> <complex.h> <ctype.h> <dirent.h> <dlfcn.h> <errno.h> <fcntl.h> <fenv.h> <float.h> <inttypes.h> <iso646.h> <limits.h> <locale.h> <math.h> <pthread...
10 KB (135 words) - 13:36, 1 August 2024
C signal handling (redirect from Signal.h)
keyboard). The C standard defines only 6 signals. They are all defined in signal.h header (csignal header in C++): SIGABRT – "abort", abnormal termination. SIGFPE...
4 KB (440 words) - 12:32, 23 May 2024
setjmp.h is a header defined in the C standard library to provide "non-local jumps": control flow that deviates from the usual subroutine call and return...
15 KB (1,609 words) - 18:30, 13 August 2024
C data types (redirect from Inttypes.h)
includes new real floating-point types float_t and double_t, defined in <math.h>. They correspond to the types used for the intermediate results of floating-point...
33 KB (3,252 words) - 15:10, 11 August 2024
C dynamic memory allocation (redirect from Alloc.h)
function ends. The C dynamic memory allocation functions are defined in stdlib.h header (cstdlib header in C++). malloc() takes a single argument (the amount...
35 KB (4,126 words) - 13:51, 7 April 2024
Date/time Localization Memory allocation Process control Signals Alternative tokens Miscellaneous headers: <assert.h> <errno.h> <setjmp.h> <stdarg.h> v t e...
24 KB (2,136 words) - 01:31, 6 April 2024
C date and time functions (redirect from Tiem.h)
current time to the standard output stream. #include <time.h> #include <stdlib.h> #include <stdio.h> int main(void) { time_t current_time; char* c_time_string;...
6 KB (349 words) - 15:50, 11 April 2024
Date/time Localization Memory allocation Process control Signals Alternative tokens Miscellaneous headers: <assert.h> <errno.h> <setjmp.h> <stdarg.h> v t e...
14 KB (1,597 words) - 10:23, 28 April 2024
#include <netdb.h> #include <sys/select.h> #include <fcntl.h> #include <unistd.h> #include <err.h> #include <errno.h> #define PORT "9421" /* function prototypes...
8 KB (650 words) - 15:17, 20 June 2022
files or whole files alleged to originate in UNIX SVRx code such as the errno.h header file. The second group are files and materials contributed by IBM...
57 KB (7,411 words) - 01:27, 15 August 2024
Input/output (C++) (redirect from Iostream.h)
moved into the std namespace, and the main header changed from <iostream.h> to <iostream>. It is this standardized version that is covered in the rest...
20 KB (1,342 words) - 13:07, 13 October 2023
C string handling (redirect from String.h)
declared in the string.h header (cstring in C++), while functions that operate on C wide strings are declared in the wchar.h header (cwchar in C++)....
49 KB (3,687 words) - 13:33, 5 September 2024
centered on nine lines of error name and number similarities in the file errno.h, Judge Wells famously said "Is this all you've got?" Professor Randall...
27 KB (2,822 words) - 17:16, 6 August 2024
Date/time Localization Memory allocation Process control Signals Alternative tokens Miscellaneous headers: <assert.h> <errno.h> <setjmp.h> <stdarg.h> v t e...
7 KB (708 words) - 17:47, 25 August 2024
C alternative tokens (redirect from Iso646.h)
implemented as a group of macro constants in the C standard library in the iso646.h header. The tokens were created by Bjarne Stroustrup for the pre-standard...
5 KB (444 words) - 14:53, 8 April 2024
Date/time Localization Memory allocation Process control Signals Alternative tokens Miscellaneous headers: <assert.h> <errno.h> <setjmp.h> <stdarg.h> v t e...
7 KB (843 words) - 23:29, 10 June 2022
C file input/output (redirect from Stdio.h)
These functions make up the bulk of the C standard library header <stdio.h>. The functionality descends from a "portable I/O package" written by Mike...
19 KB (886 words) - 21:34, 28 February 2024
left = (h/6) * (fa + 4*flm + fm); float right = (h/6) * (fm + 4*frm + fb); float delta = left + right - whole; if (rec <= 0 && errno != EDOM) errno = ERANGE;...
16 KB (2,420 words) - 09:26, 18 February 2024
Date/time Localization Memory allocation Process control Signals Alternative tokens Miscellaneous headers: <assert.h> <errno.h> <setjmp.h> <stdarg.h> v t e...
14 KB (590 words) - 18:49, 13 December 2023