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The following noncompliant code generates an ID with a numeric part produced by calling the rand() function. The IDs produced are predictable and have limited randomness. Further, depending on the value of RAND_MAX, the resulting value has can have modulo bias.
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#include <cstdlib>
#include <string>
void f() {
std::string id("ID"); // Holds the ID, starting with the characters "ID" followed
// by a random integer in the range [0-10000].
id += std::to_string(std::rand() % 10000);
// ...
} |
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