{"id":7269,"date":"2022-12-20T19:37:33","date_gmt":"2022-12-20T22:37:33","guid":{"rendered":"http:\/\/lode.uno\/linux-man\/index.php\/2022\/12\/20\/tcl_seterrno-man3-3\/"},"modified":"2022-12-20T19:37:33","modified_gmt":"2022-12-20T22:37:33","slug":"tcl_seterrno-man3-3","status":"publish","type":"post","link":"https:\/\/lode.uno\/linux-man\/2022\/12\/20\/tcl_seterrno-man3-3\/","title":{"rendered":"Tcl_SetErrno (man3)"},"content":{"rendered":"

Tcl_SetErrno<\/h1>\n

NAME<\/a>
SYNOPSIS<\/a>
ARGUMENTS<\/a>
DESCRIPTION<\/a>
KEYWORDS<\/a> <\/p>\n

\n

______________________________________________________________________________<\/p>\n

NAME <\/a> <\/h2>\n

Tcl_SetErrno, Tcl_GetErrno, Tcl_ErrnoId, Tcl_ErrnoMsg \u2212 manipulate errno to store and retrieve error codes<\/p>\n

SYNOPSIS <\/a> <\/h2>\n

#include <\/b><\/p>\n

void
Tcl_SetErrno<\/b>(errorCode<\/i>)<\/p>\n

int
Tcl_GetErrno<\/b>()<\/p>\n

const char bodies manpages.csv script_extrae_body.sh script.sh usr
Tcl_ErrnoId<\/b>()<\/p>\n

const char bodies manpages.csv script_extrae_body.sh script.sh usr
Tcl_ErrnoMsg<\/b>(errorCode<\/i>)<\/p>\n

ARGUMENTS <\/a> <\/h2>\n\n\n
<\/td>\n\n

int errorCode<\/i> (in)<\/p>\n<\/td>\n

<\/td>\n\n

A POSIX error code such as ENOENT<\/b>.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

______________________________________________________________________________<\/p>\n

DESCRIPTION <\/a> <\/h2>\n

Tcl_SetErrno<\/b> and Tcl_GetErrno<\/b> provide portable access to the errno<\/b> variable, which is used to record a POSIX error code after system calls and other operations such as Tcl_Gets<\/b>. These procedures are necessary because global variable accesses cannot be made across module boundaries on some platforms.<\/p>\n

Tcl_SetErrno<\/b> sets the errno<\/b> variable to the value of the errorCode<\/i> argument C procedures that wish to return error information to their callers via errno<\/b> should call Tcl_SetErrno<\/b> rather than setting errno<\/b> directly.<\/p>\n

Tcl_GetErrno<\/b> returns the current value of errno<\/b>. Procedures wishing to access errno<\/b> should call this procedure instead of accessing errno<\/b> directly.<\/p>\n

Tcl_ErrnoId<\/b> and Tcl_ErrnoMsg<\/b> return string representations of errno<\/b> values. Tcl_ErrnoId<\/b> returns a machine-readable textual identifier such as \u201cEACCES\u201d that corresponds to the current value of errno<\/b>. Tcl_ErrnoMsg<\/b> returns a human-readable string such as \u201cpermission denied\u201d that corresponds to the value of its errorCode<\/i> argument. The errorCode<\/i> argument is typically the value returned by Tcl_GetErrno<\/b>. The strings returned by these functions are statically allocated and the caller must not free or modify them.<\/p>\n

KEYWORDS <\/a> <\/h2>\n

errno, error code, global variables<\/p>\n

\n","protected":false},"excerpt":{"rendered":"

Tcl_SetErrno, Tcl_GetErrno, Tcl_ErrnoId, Tcl_ErrnoMsg \u2212 manipulate errno to store and retrieve error codes <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2536],"tags":[2538,3007,3594],"class_list":["post-7269","post","type-post","status-publish","format-standard","hentry","category-3-llamadas-de-bibliotecas","tag-2538","tag-man3","tag-tcl_errnoid"],"gutentor_comment":0,"_links":{"self":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/7269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/comments?post=7269"}],"version-history":[{"count":0,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/7269\/revisions"}],"wp:attachment":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/media?parent=7269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/categories?post=7269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/tags?post=7269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}