convert string to float c

To convert a string to a float in C, you can use the atof() function. Here's an example:

#include <stdio.h>
#include <stdlib.h>

int main() {
   char str[] = "3.14";
   float num = atof(str);
   printf("The float value is: %f\n", num);
   return 0;
}

In this example, the atof() function is used to convert the string "3.14" to a float value. The resulting float value is then printed using printf().

Please note that the atof() function returns a double value, but it can be assigned to a float variable since float is a smaller data type than double.

I hope this helps! Let me know if you have any further questions.