SEI CERT C Coding Standard

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Code Block
Function             Bounds-checking
acos(x), asin(x)     -1 <= x  && x <= 1
atan2                x != 0  ||  y != 0
log, log10           x >= 0
pow(x, y)            x != 0  ||  y >= 0
sqrt(x)              x >= 0

The calling function should take alternative action if these bounds are violated.

Non-Compliant Example

Code Block

float x, y, result;

result = pow(x,y);

Compliant Solution

Code Block

float x, y, result;

if(x == 0 && y <=0){
     /* handle domain error condition */
}

result = pow(x, y);

References