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When using printf(const char *format, ...) or its variants, string literals should be used for the format parameter as opposed to a char * variable. The reason is because the compile can check the string literal’s % symbols, and match them against the number of arguments passed into printf() variants. The consequence of not matching the parameters with % symbols is stack corruption, hence, the compiler checks are vital for this use-case.

int value = 1;

// Good
printf("Value is %d", value);

// Bad
const char* const format = "Value is %d";
printf(format, value);

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