Lua Doubt and errors with string formats.

[darkshin]

Hello Guys!

I'm having some bad time trying to make a C++ function read a string sent by a lua function.

The string format used in C++ function is: (const std::string & text)
And this is how I'm setting up the string that will be sent:

local text = string.format(characterInfo.name:getText())

So then, I get debugged and the log file says: "Error reading registry value", also the Locals that is supporting the error is called _Ptr and has this 2 erros: <Unable to read characters of string> ---- <Unable to read memory>.

Could someone enlighten on how this is supposed to be ?

Thankksssssss!

 

[Codex NG]

Maybe because you are using the function incorrectly?

Create a formatted string from the format and arguments provided. This is similar to the printf("format",...) function in C. An additional option %q puts quotes around a string argument's value.

c, d, E, e, f, g, G, i, o, u, X, and x all expect a number as argument.
q and s expect a string.
> = string.format("%s %q", "Hello", "Lua user!")   -- string and quoted string
Hello "Lua user!"
> = string.format("%c%c%c", 76,117,97)             -- char
Lua
> = string.format("%e, %E", math.pi,math.pi)       -- exponent
3.141593e+000, 3.141593E+000
> = string.format("%f, %g", math.pi,math.pi)       -- float and compact float
3.141593, 3.14159
> = string.format("%d, %i, %u", -100,-100,-100)    -- signed, signed, unsigned integer
-100, -100, 4294967196
> = string.format("%o, %x, %X", -100,-100,-100)    -- octal, hex, hex
37777777634, ffffff9c, FFFFFF9C

 

[darkshin]

Maybe because you are using the function incorrectly?

Create a formatted string from the format and arguments provided. This is similar to the printf("format",...) function in C. An additional option %q puts quotes around a string argument's value.

c, d, E, e, f, g, G, i, o, u, X, and x all expect a number as argument.
q and s expect a string.
> = string.format("%s %q", "Hello", "Lua user!")   -- string and quoted string
Hello "Lua user!"
> = string.format("%c%c%c", 76,117,97)             -- char
Lua
> = string.format("%e, %E", math.pi,math.pi)       -- exponent
3.141593e+000, 3.141593E+000
> = string.format("%f, %g", math.pi,math.pi)       -- float and compact float
3.141593, 3.14159
> = string.format("%d, %i, %u", -100,-100,-100)    -- signed, signed, unsigned integer
-100, -100, 4294967196
> = string.format("%o, %x, %X", -100,-100,-100)    -- octal, hex, hex
37777777634, ffffff9c, FFFFFF9C

Oh thank you. But none of this worked again :/ I guess I should leave it and find another way to do what I want.