How to initialize C string directly?

[ghost]

From the document it seems you can't do sth like this:

var s: Cstring.char_star = "text";

https://modula3.github.io/cm3/help/gen_html/m3core/src/C/FreeBSD3/Cstring.i3.html

https://modula3.github.io/cm3/help/gen_html/m3core/src/C/Common/M3toC.i3.html

You have to create a variable with type TEXT, initialize it: var t: TEXT = "text"; then use M3toC's functions to copy the value of it to s: s := M3toC.CopyTtoS(t);

I wanted to know if there is a way to create and initialize the C string directly. Thanks.

[mikanystrom]

maybe you can get away with VAR s := ARRAY [0..4] OF CHAR { 't', 'e', 'x', 't', '\000' }; or somesuch thing. Then pass ADR(s) to your C function. (Careful about going out of scope, though.)

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On Wed, Sep 14, 2022 at 5:08 AM zpu2tw ***@***.***> wrote: From the document it seems you can't do sth like this: var s: Cstring.char_star = "text"; https://modula3.github.io/cm3/help/gen_html/m3core/src/C/FreeBSD3/Cstring.i3.html https://modula3.github.io/cm3/help/gen_html/m3core/src/C/Common/M3toC.i3.html You have to create a variable with type TEXT, initialize it: var t: TEXT = "text"; then use M3toC's functions to copy the value of it to s: s := M3toC.CopyTtoS(t); I wanted to know if there is a way to create and initialize the C string directly. Thanks. — Reply to this email directly, view it on GitHub <#1082>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABKYNJJUO6MT575CW5HFNZTV6G55TANCNFSM6AAAAAAQMLGPRY> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[RodneyBates]

On 9/14/22 07:08, zpu2tw wrote: From the document it seems you can't do sth like this: var s: Cstring.char_star = "text"; https://modula3.github.io/cm3/help/gen_html/m3core/src/C/FreeBSD3/Cstring.i3.html https://modula3.github.io/cm3/help/gen_html/m3core/src/C/Common/M3toC.i3.html You have to create a variable with type TEXT, initialize it: var t: TEXT = "text"; then use M3toC's functions to copy the value of it to s: s := M3toC.CopyTtoS(t); I wanted to know if there is a way to create and initialize the C string directly. Thanks.

VAR s: Cstring.char_star = M3toC.CopyTtoS("text") But you when there are two different representations of strings, you could not avoid coding something (CopyTtoS) to denote which one.

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— Reply to this email directly, view it on GitHub <#1082>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABSVZNBTIJXKCVMNX6INYXLV6G55TANCNFSM6AAAAAAQMLGPRY>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>