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help with atof and exponential string format

 
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rkrch



Joined: 29 Jul 2013
Posts: 1

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help with atof and exponential string format
PostPosted: Mon Jul 29, 2013 2:57 pm     Reply with quote
i am a newbie and i have a problem with the following code.
I am running it on a PIC18F8722 using CCS and an ICD ..
output is 2.309e03..looks like the exponential part is not being considered or discarded...how can i correct the code?

float x;
char s = "2309.12e15";
x = atof(s);
printf("x = %e\n",x);
asmboy



Joined: 20 Nov 2007
Posts: 2128
Location: albany ny

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PostPosted: Mon Jul 29, 2013 3:52 pm     Reply with quote
are you sure your char array input , correctly terminates with an ASCII Z??
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Mon Jul 29, 2013 4:17 pm     Reply with quote
Where's your array ? Make 's' into an array by adding the brackets
shown in bold below and see what happens.
Quote:
float x;
char s[] = "2309.12e15";
x = atof(s);
printf("x = %e\n",x);
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