[SOLVED] ssize_t to integer?
lazarus / 32-Linux

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RastaManKing · 2018-12-29 06:28

I would like to display a ssize_t value in a Dialog (ShowMessage),
i know i can display an integer with
Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i
IntToStr(myInteger)but this does not work with the ssize_t variable,
how can i typecast or convert this? i tried
Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i mySsize_t
as integerbut it does not work, i get error saying, class or interface
expected but got longint.

Thanks in advance!

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Thaddy · 2018-12-29 07:47

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i {$mode
objfpc}uses unixtype,sysutils;var  myinteger:integer = 10;begin 
writeln(inttostr(ssize_t(myinteger)));end.something like that, or
Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i {$mode
objfpc}uses unixtype,sysutils;var  myinteger:integer = 10;begin 
writeln(ssize_t(myinteger).tostring);end.Since ssize_t is a platform
integer alias type the cast will use - or expand to - the properly
sized integer type.
Also note that size_t is unsigned integer type and ssize_t a signed
one.

In most cases the cast would not even be necessary, only if you need
the absolute correct size.
Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i {$mode
objfpc}uses unixtype,sysutils;var  mysize_t:ssize_t = 10;begin 
writeln(mysize_t.tostring);end.
Because ssize_t is declared an alias to a c integer type which in turn
is declared in ctypes as an alias to a pascal integer type of the
correct size.

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RastaManKing · 2018-12-29 08:16

Quote from: Thaddy on December 29, 2018, 08:47:01 amIn most cases the
cast would not even be necessary, only if you need the absolute
correct size.
Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i {$mode
objfpc}uses unixtype,sysutils;var  mysize_t:ssize_t = 10;begin 
writeln(mysize_t.tostring);end.
Because ssize_t is declared an alias to a c integer type which in turn
is declared in ctypes as an alias to a pascal integer type of the
correct size.

this one worked, thank you!!
its the only one i hadnt tried, but .tostring worked