forked from OSchip/llvm-project
43 lines
1.7 KiB
C++
43 lines
1.7 KiB
C++
// RUN: %check_clang_tidy %s cppcoreguidelines-no-malloc %t
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using size_t = __SIZE_TYPE__;
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void *malloc(size_t size);
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void *calloc(size_t num, size_t size);
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void *realloc(void *ptr, size_t size);
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void free(void *ptr);
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void malloced_array() {
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int *array0 = (int *)malloc(sizeof(int) * 20);
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// CHECK-MESSAGES: :[[@LINE-1]]:24: warning: do not manage memory manually; consider a container or a smart pointer [cppcoreguidelines-no-malloc]
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int *zeroed = (int *)calloc(20, sizeof(int));
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// CHECK-MESSAGES: :[[@LINE-1]]:24: warning: do not manage memory manually; consider a container or a smart pointer [cppcoreguidelines-no-malloc]
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// reallocation memory, std::vector shall be used
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char *realloced = (char *)realloc(array0, 50 * sizeof(int));
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// CHECK-MESSAGES: :[[@LINE-1]]:29: warning: do not manage memory manually; consider std::vector or std::string [cppcoreguidelines-no-malloc]
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// freeing memory the bad way
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free(realloced);
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// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not manage memory manually; use RAII [cppcoreguidelines-no-malloc]
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// check if a call to malloc as function argument is found as well
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free(malloc(20));
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// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: do not manage memory manually; use RAII [cppcoreguidelines-no-malloc]
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// CHECK-MESSAGES: :[[@LINE-2]]:8: warning: do not manage memory manually; consider a container or a smart pointer [cppcoreguidelines-no-malloc]
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}
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/// newing an array is still not good, but not relevant to this checker
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void newed_array() {
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int *new_array = new int[10]; // OK(1)
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}
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void arbitrary_call() {
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// we dont want every function to raise the warning even if malloc is in the name
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malloced_array(); // OK(2)
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// completely unrelated function call to malloc
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newed_array(); // OK(3)
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}
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