Gestionnaire de fichiers - Editer - /opt/cpanel/ea-ruby24/root/usr/share/ri/system/Kernel/syscall-i.ri
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U:RDoc::AnyMethod[iI" syscall:ETI"Kernel#syscall;TF: publico:RDoc::Markup::Document: @parts[o: RDoc::Markup::Paragraph; [I"ACalls the operating system function identified by _num_ and ;TI"Ereturns the result of the function or raises SystemCallError if ;TI"it failed.;To: RDoc::Markup::BlankLine o; ; [ I"FArguments for the function can follow _num_. They must be either ;TI"H+String+ objects or +Integer+ objects. A +String+ object is passed ;TI"Fas a pointer to the byte sequence. An +Integer+ object is passed ;TI"8as an integer whose bit size is same as a pointer. ;TI")Up to nine parameters may be passed.;T@o; ; [I"0The function identified by _num_ is system ;TI"Idependent. On some Unix systems, the numbers may be obtained from a ;TI"/header file called <code>syscall.h</code>.;T@o:RDoc::Markup::Verbatim; [I"?syscall 4, 1, "hello\n", 6 # '4' is write(2) on our box ;T: @format0o; ; [I"<em>produces:</em>;T@o; ; [I" hello ;T; 0o; ; [I"DCalling +syscall+ on a platform which does not have any way to ;TI"Fan arbitrary system function just fails with NotImplementedError.;T@o; ; [ I" *Note:* ;TI"5+syscall+ is essentially unsafe and unportable. ;TI"#Feel free to shoot your foot. ;TI">The DL (Fiddle) library is preferred for safer and a bit ;TI" more portable programming.;T: @fileI" io.c;T:0@omit_headings_from_table_of_contents_below0I"+syscall(num [, args...]) -> integer ;T0[ I" (*args);T@1FI" Kernel;TcRDoc::NormalModule00
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