Implement copy function for C messages #650
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Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com>
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| * This functions performs a deep copy, as opposed to the shallow copy that | ||
| * plain assignment yields. | ||
| * | ||
| * \param[out] input a pointer to a rosidl_runtime_c__String structure |
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| * \param[out] input a pointer to a rosidl_runtime_c__String structure | |
| * \param[in] input a pointer to a rosidl_runtime_c__String structure |
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rosidl_runtime_c/include/rosidl_runtime_c/u16string_functions.h
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Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com>
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Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com>
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* Implement equality operator function for C messages. (#648) Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> * Implement copy function for C messages (#650) Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> * Replace rcutils_allocator with the system allocator Signed-off-by: Nikolai Morin <nnmmgit@gmail.com> * Set the output size unconditionally when copying sequences Signed-off-by: Nikolai Morin <nnmmgit@gmail.com> Co-authored-by: Michel Hidalgo <michel@ekumenlabs.com>
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* Implement equality operator function for C messages. (#648) Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> * Implement copy function for C messages (#650) Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> * Replace rcutils_allocator with the system allocator Signed-off-by: Nikolai Morin <nnmmgit@gmail.com> * Set the output size unconditionally when copying sequences Signed-off-by: Nikolai Morin <nnmmgit@gmail.com> Co-authored-by: Michel Hidalgo <michel@ekumenlabs.com>
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Precisely what the title says. While C++ messages overload the assignment operator, plain assignment of C messages results in shallow copy of pointers which in turn leads to ownership issues (e.g. double free crashes) down the line. This patch amends this.
Depends on #648.