Extended Library Functions - Part 1
ct_event_read_critical(3CONTRACT)
ct_pr_event_get_exitstatus(3CONTRACT)
ct_pr_event_get_gcorefile(3CONTRACT)
ct_pr_event_get_pcorefile(3CONTRACT)
ct_pr_event_get_pid(3CONTRACT)
ct_pr_event_get_ppid(3CONTRACT)
ct_pr_event_get_sender(3CONTRACT)
ct_pr_event_get_senderct(3CONTRACT)
ct_pr_event_get_signal(3CONTRACT)
ct_pr_event_get_zcorefile(3CONTRACT)
ct_pr_status_get_contracts(3CONTRACT)
ct_pr_status_get_fatal(3CONTRACT)
ct_pr_status_get_members(3CONTRACT)
ct_pr_status_get_param(3CONTRACT)
ct_pr_tmpl_get_fatal(3CONTRACT)
ct_pr_tmpl_get_param(3CONTRACT)
ct_pr_tmpl_get_transfer(3CONTRACT)
ct_pr_tmpl_set_fatal(3CONTRACT)
ct_pr_tmpl_set_param(3CONTRACT)
ct_pr_tmpl_set_transfer(3CONTRACT)
ct_status_get_cookie(3CONTRACT)
ct_status_get_critical(3CONTRACT)
ct_status_get_holder(3CONTRACT)
ct_status_get_informative(3CONTRACT)
ct_status_get_nevents(3CONTRACT)
ct_status_get_nevid(3CONTRACT)
ct_status_get_ntime(3CONTRACT)
ct_status_get_qtime(3CONTRACT)
ct_status_get_state(3CONTRACT)
ct_status_get_zoneid(3CONTRACT)
ct_tmpl_get_critical(3CONTRACT)
ct_tmpl_get_informative(3CONTRACT)
ct_tmpl_set_critical(3CONTRACT)
ct_tmpl_set_informative(3CONTRACT)
dat_evd_clear_unwaitable(3DAT)
dat_get_consumer_context(3DAT)
Extended Library Functions - Part 2
Extended Library Functions - Part 3
Extended Library Functions - Part 4
- inverse hyperbolic cosine functions
c99 [ flag... ] file... -lm [ library... ] #include <math.h> double acosh(double x);
float acoshf(float x);
long double acoshl(long double x);
These functions compute the inverse hyperbolic cosine of their argument x.
Upon successful completion, these functions return the inverse hyperbolic cosine of their argument.
For finite values of x < 1, a domain error occurs and NaN is returned.
If x is NaN, NaN is returned.
If x is +1, +0 is returned.
If x is +Inf, +Inf is returned.
If x is -Inf, a domain error occurs and NaN is returned.
For exceptional cases, matherr(3M) tabulates the values to be returned by acosh() as specified by SVID3 and XPG3.
These functions will fail if:
The x argument is finite and less than 1.0, or is -Inf.
If the integer expression (math_errhandling & MATH_ERREXCEPT) is non-zero, the invalid floating-point exception is raised.
The acosh() function sets errno to EDOM if x is less than 1.0.
An application wanting to check for exceptions should call feclearexcept(FE_ALL_EXCEPT) before calling these functions. On return, if fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW) is non-zero, an exception has been raised. An application should either examine the return value or check the floating point exception flags to detect exceptions.
An application can also set errno to 0 before calling acosh(). On return, if errno is non-zero, an error has occurred. The acoshf() and acoshl() functions do not set errno.
See attributes(5) for descriptions of the following attributes:
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cosh(3M), feclearexcept(3M), fetestexcept(3M), math.h(3HEAD), matherr(3M), attributes(5), standards(5)