This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 117a. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
2025-04-13
1886. Language linkage for main()Section: 6.9.3.1 [basic.start.main] Status: CD4 Submitter: Richard Smith Date: 2014-03-04[Moved to DR at the May, 2015 meeting.]
There does not appear to be any restriction on giving main() an explicit language linkage, but it should probably be either ill-formed or conditionally-supported.
Proposed resolution (November, 2014):
Change 6.9.3.1 [basic.start.main] paragraph 2 as follows:
An implementation shall not predefine the main function. This function shall not be overloaded. It Its type shall have C++ language linkage and it shall have a declared return type of type int, but otherwise its type is implementation-defined. An implementation shall allow both...
Change 6.9.3.1 [basic.start.main] paragraph 3 as follows:
The function main shall not be used within a program. The linkage (6.6 [basic.link]) of main is implementation-defined. A program that defines main as deleted or that declares main to be inline, static, or constexpr is ill-formed. The main function shall not be declared with a linkage-specification (9.12 [dcl.link]). A program that declares a variable main at global scope or that declares the name main with C language linkage (in any namespace) is ill-formed. The name main is not otherwise reserved...
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