{"id":7331,"date":"2022-12-20T19:37:43","date_gmt":"2022-12-20T22:37:43","guid":{"rendered":"http:\/\/lode.uno\/linux-man\/index.php\/2022\/12\/20\/tcl_pkgrequire-man3\/"},"modified":"2022-12-20T19:37:43","modified_gmt":"2022-12-20T22:37:43","slug":"tcl_pkgrequire-man3","status":"publish","type":"post","link":"https:\/\/lode.uno\/linux-man\/2022\/12\/20\/tcl_pkgrequire-man3\/","title":{"rendered":"Tcl_PkgRequire (man3)"},"content":{"rendered":"

Tcl_PkgRequire<\/h1>\n

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

\n

______________________________________________________________________________<\/p>\n

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

Tcl_PkgRequire, Tcl_PkgRequireEx, Tcl_PkgRequireProc, Tcl_PkgPresent, Tcl_PkgPresentEx, Tcl_PkgProvide, Tcl_PkgProvideEx \u2212 package version control<\/p>\n

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

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

const char bodies manpages.csv script_extrae_body.sh script.sh usr
Tcl_PkgRequire<\/b>(interp, name, version, exact<\/i>)<\/p>\n

const char bodies manpages.csv script_extrae_body.sh script.sh usr
Tcl_PkgRequireEx<\/b>(interp, name, version, exact, clientDataPtr<\/i>)<\/p>\n

int
Tcl_PkgRequireProc<\/b>(interp, name, objc, objv, clientDataPtr<\/i>)<\/p>\n

const char bodies manpages.csv script_extrae_body.sh script.sh usr
Tcl_PkgPresent<\/b>(interp, name, version, exact<\/i>)<\/p>\n

const char bodies manpages.csv script_extrae_body.sh script.sh usr
Tcl_PkgPresentEx<\/b>(interp, name, version, exact, clientDataPtr<\/i>)<\/p>\n

int
Tcl_PkgProvide<\/b>(interp, name, version<\/i>)<\/p>\n

int
Tcl_PkgProvideEx<\/b>(interp, name, version, clientData<\/i>)<\/p>\n

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

Tcl_Interp *interp<\/i> (in)<\/p>\n<\/td>\n

<\/td>\n\n

Interpreter where package is needed or available.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

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

<\/td>\n\n

Name of package.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

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

<\/td>\n\n

A version string consisting of one or more decimal numbers separated by dots.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

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

<\/td>\n\n

Non-zero means that only the particular version specified by version<\/i> is acceptable. Zero means that newer versions than version<\/i> are also acceptable as long as they have the same major version number as version<\/i>.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

const void *clientData<\/i> (in)<\/p>\n<\/td>\n

<\/td>\n\n

Arbitrary value to be associated with the package.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

void *clientDataPtr<\/i> (out)<\/p>\n<\/td>\n

<\/td>\n\n

Pointer to place to store the value associated with the matching package. It is only changed if the pointer is not NULL and the function completed successfully. The storage can be any pointer type with the same size as a void pointer.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

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

<\/td>\n\n

Number of requirements.<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

Tcl_Obj* objv[]<\/i> (in)<\/p>\n<\/td>\n

<\/td>\n\n

Array of requirements.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

______________________________________________________________________________<\/p>\n

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

These procedures provide C-level interfaces to Tcl\u2019s package and version management facilities.<\/p>\n

Tcl_PkgRequire<\/b> is equivalent to the package require<\/b> command, Tcl_PkgPresent<\/b> is equivalent to the package present<\/b> command, and Tcl_PkgProvide<\/b> is equivalent to the package provide<\/b> command.<\/p>\n

See the documentation for the Tcl commands for details on what these procedures do.<\/p>\n

If Tcl_PkgPresent<\/b> or Tcl_PkgRequire<\/b> complete successfully they return a pointer to the version string for the version of the package that is provided in the interpreter (which may be different than version<\/i>); if an error occurs they return NULL and leave an error message in the interpreter\u2019s result.<\/p>\n

Tcl_PkgProvide<\/b> returns TCL_OK<\/b> if it completes successfully; if an error occurs it returns TCL_ERROR<\/b> and leaves an error message in the interpreter\u2019s result.<\/p>\n

Tcl_PkgProvideEx<\/b>, Tcl_PkgPresentEx<\/b> and Tcl_PkgRequireEx<\/b> allow the setting and retrieving of the client data associated with the package. In all other respects they are equivalent to the matching functions.<\/p>\n

Tcl_PkgRequireProc<\/b> is the form of package require<\/b> handling multiple requirements. The other forms are present for backward compatibility and translate their invocations to this form.<\/p>\n

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

package, present, provide, require, version<\/p>\n

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

package(n), Tcl_StaticPackage(3)<\/p>\n

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

Tcl_PkgRequire, Tcl_PkgRequireEx, Tcl_PkgRequireProc, Tcl_PkgPresent, Tcl_PkgPresentEx, Tcl_PkgProvide, Tcl_PkgProvideEx \u2212 package version control <\/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":[2538,3007,3649],"class_list":["post-7331","post","type-post","status-publish","format-standard","hentry","category-3-llamadas-de-bibliotecas","tag-2538","tag-man3","tag-tcl_pkgrequire"],"gutentor_comment":0,"_links":{"self":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/7331","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=7331"}],"version-history":[{"count":0,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/7331\/revisions"}],"wp:attachment":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/media?parent=7331"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/categories?post=7331"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/tags?post=7331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}