43 lines · cpp
1// RUN: %check_clang_tidy %s cppcoreguidelines-no-malloc %t2 3using size_t = __SIZE_TYPE__;4 5void *malloc(size_t size);6void *calloc(size_t num, size_t size);7void *realloc(void *ptr, size_t size);8void free(void *ptr);9 10void malloced_array() {11 int *array0 = (int *)malloc(sizeof(int) * 20);12 // CHECK-MESSAGES: :[[@LINE-1]]:24: warning: do not manage memory manually; consider a container or a smart pointer [cppcoreguidelines-no-malloc]13 14 int *zeroed = (int *)calloc(20, sizeof(int));15 // CHECK-MESSAGES: :[[@LINE-1]]:24: warning: do not manage memory manually; consider a container or a smart pointer [cppcoreguidelines-no-malloc]16 17 // reallocation memory, std::vector shall be used18 char *realloced = (char *)realloc(array0, 50 * sizeof(int));19 // CHECK-MESSAGES: :[[@LINE-1]]:29: warning: do not manage memory manually; consider std::vector or std::string [cppcoreguidelines-no-malloc]20 21 // freeing memory the bad way22 free(realloced);23 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not manage memory manually; use RAII [cppcoreguidelines-no-malloc]24 25 // check if a call to malloc as function argument is found as well26 free(malloc(20));27 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not manage memory manually; use RAII [cppcoreguidelines-no-malloc]28 // CHECK-MESSAGES: :[[@LINE-2]]:8: warning: do not manage memory manually; consider a container or a smart pointer [cppcoreguidelines-no-malloc]29}30 31/// newing an array is still not good, but not relevant to this checker32void newed_array() {33 int *new_array = new int[10]; // OK(1)34}35 36void arbitrary_call() {37 // we dont want every function to raise the warning even if malloc is in the name38 malloced_array(); // OK(2)39 40 // completely unrelated function call to malloc41 newed_array(); // OK(3)42}43