// #pragma GCC poison directive #include<stdio.h> #pragmaGCC poison printf intmain() { inta=10; if(a==10) { printf("GEEKSFORGEEKS"); } else printf("bye"); return0; } 上面的程序会报如下错误: prog.c:Infunction'main': prog.c:14:9:error:attempt tousepoisoned"printf" printf("GEEK...
void__attribute__((constructor)) func1(); void__attribute__((destructor)) func2(); #pragma warn Directive in case there are some warning and you are sure it works as your expection and there is no any risk, you can use #pragma warn to disable it, but the code shall have a well ...
Pragma directives are machine-specific or operating system-specific by definition, and are typically different for every compiler. A pragma can be used in a conditional directive, to provide new preprocessor functionality. Or, use one to provide implementation-defined information to the compiler. ...
Macro expansion is neither required nor prohibited in the C or C++ standard, so it would fall into the category of implementation-defined behavior. clang is advertised as a complete replacement for gcc. Therefore, in order to keep true to this statement, clang SHOULD NOT expand macros. I use...
E.1.13.6 (6.8.6) The behavior on each recognized #pragma directive(每个识别的 #pragma 指令的行为):支持以下 pragma。有关更多信息,请参见2.11 Pragma。align integer (variable[, variable]) c99 ("implicit" | "no%implicit") does_not_read_global_data (funcname [, funcname]) does_not_re...
__pragma keyword, which has the same functionality as the #pragma directive, but can be used inline in a macro definition. The #pragma directive cannot be used in a macro definition because the compiler interprets the number sign character ('#') in the directive to be thestringizing ...
RC does not support the pragma directives supported by the C/C++ compiler. However, RC does support the following pragma directive for changing the code page: syntax #pragma code_page( [ DEFAULT | CodePageNum ] ) This pragma is not supported in an included resource file (.rc). Therefore,...
pragmaAlso found in: Acronyms, Wikipedia. pragma[′prag·mə] (computer science) A directive inserted into a computer program to prevent the automatic execution of certain error checking and reporting routines which are no longer necessary when the program has been perfected....
(Optional) Specifies the value, in bytes, to be used for packing. If the compiler option/Zpisn't set for the module, the default value fornis 8. Valid values are 1, 2, 4, 8, and 16. The alignment of a member is on a boundary that's either a multiple ofn, or a multiple of ...
It is a directive—a speech act that “involve(s) an attempt to make the addressee do what is expressed in the propositions they relate to” (p. 39). At this stage in the debate, he has little room to maneuver, since Saṅkarṣaṇa has chosen to begin by temporarily accepting ...