NAME<\/a> ______________________________________________________________________________<\/p>\n error \u2212 Generate an error<\/p>\n error<\/b> message<\/i> ?info<\/i>? ?code<\/i>? ______________________________________________________________________________<\/p>\n Returns a TCL_ERROR<\/b> code, which causes command interpretation to be unwound. Message<\/i> is a string that is returned to the application to indicate what went wrong.<\/p>\n The \u2212errorinfo<\/b> return option of an interpreter is used to accumulate a stack trace of what was in progress when an error occurred; as nested commands unwind, the Tcl interpreter adds information to the \u2212errorinfo<\/b> return option. If the info<\/i> argument is present, it is used to initialize the \u2212errorinfo<\/b> return options and the first increment of unwind information will not be added by the Tcl interpreter. In other words, the command containing the error<\/b> command will not appear in the stack trace; in its place will be info<\/i>. Historically, this feature had been most useful in conjunction with the catch<\/b> command: if a caught error cannot be handled successfully, info<\/i> can be used to return a stack trace reflecting the original point of occurrence of the error:<\/p>\n catch {…} errMsg When working with Tcl 8.5 or later, the following code should be used instead:<\/p>\n catch {…} errMsg options If the code<\/i> argument is present, then its value is stored in the \u2212errorcode<\/b> return option. The \u2212errorcode<\/b> return option is intended to hold a machine-readable description of the error in cases where such information is available; see the return<\/b> manual page for information on the proper format for this option\u2019s value.<\/p>\n Generate an error if a basic mathematical operation fails:<\/p>\n if {1+2 != 3} { catch(n), return(n)<\/p>\n error, exception<\/p>\n error \u2212 Generate an error <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3783,1],"tags":[2933,2635],"class_list":["post-6340","post","type-post","status-publish","format-standard","hentry","category-n-comandos-tcl-tk","category-sin-categoria","tag-error","tag-mann"],"gutentor_comment":0,"_links":{"self":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/6340","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=6340"}],"version-history":[{"count":0,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/6340\/revisions"}],"wp:attachment":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/media?parent=6340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/categories?post=6340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/tags?post=6340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
SYNOPSIS<\/a>
DESCRIPTION<\/a>
EXAMPLE<\/a>
SEE ALSO<\/a>
KEYWORDS<\/a> <\/p>\n
\nNAME <\/a> <\/h2>\n
SYNOPSIS <\/a> <\/h2>\n
DESCRIPTION <\/a> <\/h2>\n
set savedInfo $::errorInfo
…
error<\/b> $errMsg $savedInfo<\/p>\n
…
return -options $options $errMsg<\/p>\nEXAMPLE <\/a> <\/h2>\n
error<\/b> “something is very wrong with addition”
}<\/p>\nSEE ALSO <\/a> <\/h2>\n
KEYWORDS <\/a> <\/h2>\n
\n","protected":false},"excerpt":{"rendered":"