SEI CERT C Coding Standard

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Code Block
bgColor#FFCCCC
#define PI 3.1415914159f
float degrees;
float radians;
/* ... */
radians = degrees * PI / 180;

...

Compliant Solution
In this compliant solution, pi is declared as a const-qualified object, allowing the constant to have scope and to have its value inspected by a debugger.
 Code Block
bgColor#ccccff
const float pi = 3.1415914159f;
float degrees;
float radians;
/* ... */
radians = degrees * pi / 180;

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