Convert from float to char*

Hello;

I need to take a float value, which will always be a whole integer number, so can be cast with int(float) to become an int. I then need to het this int into a char* for a GL command. Can someone help?

you can use sprintf()

Code:

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float n = 123;
char buf[8];
sprintf(buf,"%d", (int)n);

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I think this will work too

Code:

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float n = 123;
char buf[8];
sprintf(buf,"%.0f", n);

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Can I do this without having to declare an array size for the char*

Code:

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#include <sstream>

std::stringstream Stream;
Stream << static_cast<int>(var);
const char* charPointer = Stream.str().c_str();

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> Can I do this without having to declare an array size for the char*
Arrays are not pointers.

Code:

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float n = 123;
char buf[8];
sprintf(buf,"%d", (int)n);
glSomeFunc( buf );

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The array becomes a char* (learn about how arrays decay into pointers to the first element of the array) when you pass the array as a function parameter.