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...

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...

#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()...

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...

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...

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...

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...

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...

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...

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...

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...

<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...

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...

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...

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...

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...

Date/time Localization Memory allocation Process control Signals Alternative tokens Miscellaneous headers: <assert.h> <errno.h> <setjmp.h> <stdarg.h> v t e...

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;...

Date/time Localization Memory allocation Process control Signals Alternative tokens Miscellaneous headers: <assert.h> <errno.h> <setjmp.h> <stdarg.h> v t e...

#include <netdb.h> #include <sys/select.h> #include <fcntl.h> #include <unistd.h> #include <err.h> #include <errno.h> #define PORT "9421" /* function prototypes...

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...

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...

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++)....

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...

Date/time Localization Memory allocation Process control Signals Alternative tokens Miscellaneous headers: <assert.h> <errno.h> <setjmp.h> <stdarg.h> v t e...

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...

Date/time Localization Memory allocation Process control Signals Alternative tokens Miscellaneous headers: <assert.h> <errno.h> <setjmp.h> <stdarg.h> v t e...

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...

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;...

Date/time Localization Memory allocation Process control Signals Alternative tokens Miscellaneous headers: <assert.h> <errno.h> <setjmp.h> <stdarg.h> v t e...