Converting char* to float - GameCreators Forum

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Briere

19

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Joined: 28th Feb 2005

Location: Amherst New York, United States

Posted: 27th Dec 2005 15:55

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How can I use the input I get to create a matrix?
Im trying this, but I cannot convert from char* to float.

I tried dbInt() but it didnt work.

+ Code Snippet

#include "DarkSDK.h" 

void DarkSDK (void)
{ 
	char* cpFileName;
	char* cpMatrixWidth;
	char* cpMatrixHeight;
	char* cpMatrixSegments;
	char* cpMatrixTextureLocation;
	char* cpMatrixTextureNumber;
	
	dbPrint("File Name: ");
	cpFileName					= dbInput();
	dbPrint("Matrix Height: ");
	cpMatrixHeight				= dbInput();
	dbPrint("Matrix Width: ");
	cpMatrixWidth				= dbInput();
	dbPrint("Matrix Segments: ");
	cpMatrixSegments				= dbInput();
	dbPrint("Texture Location: ");
	cpMatrixTextureLocation		= dbInput();
	dbPrint("Texture Number: ");
	cpMatrixTextureNumber		= dbInput();

	dbMakeMatrix (1,cpMatrixWidth,cpMatrixHeight,cpMatrixSegments,cpMatrixSegments);


}

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Vlad

19

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Joined: 5th Oct 2005

Location:

Posted: 27th Dec 2005 16:13 Edited at: 27th Dec 2005 16:16

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Hope this helps, never tested it though. Just had a fain idea I had seen it somewhere so I googled it.

EDIT: Wait a sec, this is not it, let me try again.
EDIT Nº2 ( in less than 1 minute

):

http://www.sourcepole.com/sources/programming/cpp/cppqref.html

Make a find in that doc for "STDLIB.H, CSTDLIB (Misc. functions)"

It's right there.

Good luck.

V

I'm pretty sure I know everything. Doubts are something rare in me and I am never wrong, as this signature can prove.

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Sephnroth

22

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Joined: 10th Oct 2002

Location: United Kingdom

Posted: 27th Dec 2005 16:35

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the command you want is atof() - its contained in stdlib.h and maths.h I belive.

would convert a char to float, example:

char szFloat[2] = "42 ";
float fFloat = atof(szFloat);
dbPrint(fFloat);

//output: 42.000000

indepth refrance: http://www.cplusplus.com/ref/cstdlib/atof.html

DarkSDK/WinAPI Tutorial

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