{"id":7398,"date":"2022-12-20T19:37:56","date_gmt":"2022-12-20T22:37:56","guid":{"rendered":"http:\/\/lode.uno\/linux-man\/index.php\/2022\/12\/20\/tcl_panic-man3-2\/"},"modified":"2022-12-20T19:37:56","modified_gmt":"2022-12-20T22:37:56","slug":"tcl_panic-man3-2","status":"publish","type":"post","link":"https:\/\/lode.uno\/linux-man\/2022\/12\/20\/tcl_panic-man3-2\/","title":{"rendered":"Tcl_Panic (man3)"},"content":{"rendered":"

Tcl_Panic<\/h1>\n

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

\n

______________________________________________________________________________<\/p>\n

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

Tcl_Panic, Tcl_PanicVA, Tcl_SetPanicProc \u2212 report fatal error and abort<\/p>\n

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

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

void
Tcl_Panic<\/b>(format<\/i>, arg<\/i>, arg<\/i>, …<\/i>)<\/p>\n

void
Tcl_PanicVA<\/b>(format<\/i>, argList<\/i>)<\/p>\n

void
Tcl_SetPanicProc<\/b>(panicProc<\/i>)<\/p>\n

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

const char* format<\/i> (in)<\/p>\n<\/td>\n

<\/td>\n\n

A printf-style format string.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

arg<\/i> (in)<\/p>\n<\/td>\n

<\/td>\n\n

Arguments matching the format string.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

va_list argList<\/i> (in)<\/p>\n<\/td>\n

<\/td>\n\n

An argument list of arguments matching the format string. Must have been initialized using va_start<\/b>, and cleared using va_end<\/b>.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

Tcl_PanicProc *panicProc<\/i> (in)<\/p>\n<\/td>\n

<\/td>\n\n

Procedure to report fatal error message and abort.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

______________________________________________________________________________<\/p>\n

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

When the Tcl library detects that its internal data structures are in an inconsistent state, or that its C procedures have been called in a manner inconsistent with their documentation, it calls Tcl_Panic<\/b> to display a message describing the error and abort the process. The format<\/i> argument is a format string describing how to format the remaining arguments arg<\/i> into an error message, according to the same formatting rules used by the printf<\/b> family of functions. The same formatting rules are also used by the built-in Tcl command format<\/b>.<\/p>\n

In a freshly loaded Tcl library, Tcl_Panic<\/b> prints the formatted error message to the standard error file of the process, and then calls abort<\/b> to terminate the process. Tcl_Panic<\/b> does not return. On Windows, when a debugger is running, the formatted error message is sent to the debugger in stead. If the windows executable does not have a stderr channel (e.g. wish.exe<\/b>), then a system dialog box is used to display the panic message.<\/p>\n

Tcl_SetPanicProc<\/b> may be used to modify the behavior of Tcl_Panic<\/b>. The panicProc<\/i> argument should match the type Tcl_PanicProc<\/b>:<\/p>\n

typedef void Tcl_PanicProc<\/b>(
const char *format<\/b>,
arg<\/b>, arg<\/b>,…);<\/p>\n

After Tcl_SetPanicProc<\/b> returns, any future calls to Tcl_Panic<\/b> will call panicProc<\/i>, passing along the format<\/i> and arg<\/i> arguments. panicProc<\/i> should avoid making calls into the Tcl library, or into other libraries that may call the Tcl library, since the original call to Tcl_Panic<\/b> indicates the Tcl library is not in a state of reliable operation.<\/p>\n

The typical use of Tcl_SetPanicProc<\/b> arranges for the error message to be displayed or reported in a manner more suitable for the application or the platform.<\/p>\n

Although the primary callers of Tcl_Panic<\/b> are the procedures of the Tcl library, Tcl_Panic<\/b> is a public function and may be called by any extension or application that wishes to abort the process and have a panic message displayed the same way that panic messages from Tcl will be displayed.<\/p>\n

Tcl_PanicVA<\/b> is the same as Tcl_Panic<\/b> except that instead of taking a variable number of arguments it takes an argument list.<\/p>\n

SEE ALSO <\/a> <\/h2>\n

abort(3), printf(3), exec(n), format(n)<\/p>\n

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

abort, fatal, error<\/p>\n

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

Tcl_Panic, Tcl_PanicVA, Tcl_SetPanicProc \u2212 report fatal error and abort <\/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":[2538,3007,3711],"class_list":["post-7398","post","type-post","status-publish","format-standard","hentry","category-3-llamadas-de-bibliotecas","tag-2538","tag-man3","tag-tcl_panicva"],"gutentor_comment":0,"_links":{"self":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/7398","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=7398"}],"version-history":[{"count":0,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/7398\/revisions"}],"wp:attachment":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/media?parent=7398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/categories?post=7398"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/tags?post=7398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}