failed to compile. ambiguous call to writer->Put
#7057
Comments
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It seems this problem is introduced by 80120a2. @erjiaqing @vivien-apple And also related #6345 |
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Since the original type is As discussed in esp-idf#6906, type alias on riscv32-esp is from the upstream RISC-V toolchain. |
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Is this fixed by #7266? |
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Fixed |
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Problem
Step to reproduce
Build
examples/all-cluster-app/esp32The error mesage shows:
Click to expand!
Compiler version:
riscv32-esp-elf-g++8.4.0Some details
The riscv32 toolchains defines
int32_tfromlong intinstead ofint. This is unusual. But ESP-IDF did it!This table shows all common used int type alias on riscv32-esp:
In the chip code, the field
entry.eventTypeis an enum, and we have not set the underlying integer types, so the enum takes the default undying typeint.Then the problem happen.
As you can see, there is no type alias takes
int, and we are not define a functionCHIP_ERROR chip::TLV::TLVWriter::Put(uint64_t, int)for compiler. So when the compiler try to invokechip::TLV::TLVWriter::Put, it confused.chip::TLV::TLVWriter::Put(uint64_t, EmberAfStatus&), but it is not defined. So the compiler should make a implicit cast.CHIP_ERROR chip::TLV::TLVWriter::Put(uint64_t, int)or similar overloads, then it fails due to they are not defined.EmberAfStatusto other compatible int type, but it find so many candidates, and it doesn't know which one should be take, so it fails again.Proposed Solution
I think there are many solutions we can choice, just advise:
int32_twhen we callchip::TLV::TLVWriter::Put.int32_tfromintinstead oflong int.The text was updated successfully, but these errors were encountered: