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Fix build failing with float precision mismatch #3002

Merged
merged 4 commits into from
Feb 14, 2017
Merged

Fix build failing with float precision mismatch #3002

merged 4 commits into from
Feb 14, 2017

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daspecster
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@daspecster daspecster commented Feb 13, 2017 •
edited by dhermes
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Build is failing due to float precision.
See: https://circleci.com/gh/GoogleCloudPlatform/google-cloud-python/876

Clarification: float (i.e. single) vs. double. Double values are being cast down into float (which is correct, but is also a breaking change). For example

>>> (0.9224355).hex()
'0x1.d849774256bcap-1'
>>> from google.cloud.grpc.vision.v1 import image_annotator_pb2
>>> e = image_annotator_pb2.EntityAnnotation(score=0.9224355)
>>> e.score
0.9224355220794678
>>> e.score.hex()
'0x1.d849780000000p-1'

@daspecster daspecster added api: speech Issues related to the Speech-to-Text API. api: vision Issues related to the Cloud Vision API. labels Feb 13, 2017
@googlebot googlebot added the cla: yes This human has signed the Contributor License Agreement. label Feb 13, 2017
@daspecster daspecster changed the title Switch failing floats to 1/8. Fix build failing with float precision mismatch Feb 13, 2017
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dhermes reviewed Feb 13, 2017
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speech/unit_tests/test_client.py Outdated
}, {
'transcript': 'testing 4 5 6',
'confidence': 0.0123456,
'confidence': 0.125,

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speech/unit_tests/test_client.py Outdated
}, {
'transcript': 'testing streaming 4 5 6',
'confidence': 0.0123456,
'confidence': 0.125,

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@tseaver tseaver mentioned this pull request Feb 13, 2017
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dhermes commented Feb 13, 2017

@lukesneeringer @geigerj Are you aware of any code paths in google.protobuf that are casting these values from double to float?

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geigerj commented Feb 13, 2017

@dhermes I'm not particularly familiar with the inner workings of google.protobuf, but that seems probable given that the source proto declares score as a float, which in the proto wire format is 32-bit (https://developers.google.com/protocol-buffers/docs/encoding).

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dhermes commented Feb 14, 2017

@daspecster LGTM. Let's get this merged ASAP. Squash if you'd like

@lukesneeringer lukesneeringer merged commit e4661b0 into googleapis:master Feb 14, 2017
@daspecster daspecster deleted the fix-speech-vision-float branch February 14, 2017 16:22
@dhermes dhermes mentioned this pull request Feb 16, 2017
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@daspecster daspecster mentioned this pull request Feb 24, 2017
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dhermes commented Feb 28, 2017 •
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Whatever issue that caused this seems to have been a regression? I can't can no longer reproduce on Ubuntu 16.04 or OS X 10.11.

richkadel pushed a commit to richkadel/google-cloud-python that referenced this pull request May 6, 2017
@daspecster @lukesneeringer
Fix build failing with float precision mismatch (googleapis#3002)
337326d
atulep pushed a commit that referenced this pull request Apr 3, 2023
@daspecster @lukesneeringer
Fix build failing with float precision mismatch (#3002)
a6fd782
atulep pushed a commit that referenced this pull request Apr 18, 2023
@daspecster @lukesneeringer
Fix build failing with float precision mismatch (#3002)
82bce2f
parthea pushed a commit that referenced this pull request Oct 21, 2023
@daspecster @lukesneeringer
Fix build failing with float precision mismatch (#3002)
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parthea pushed a commit that referenced this pull request Oct 22, 2023
@daspecster @lukesneeringer
Fix build failing with float precision mismatch (#3002)
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