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d5f4ea22f0
Signed zeros are emitted. Subormal numbers are emitted as hex float. Handling Inf and NaN is unresolved in the spec. See https://github.com/gpuweb/gpuweb/issues/1769 NaN tests are disabled, due to platform dependence. Windows x86-64 seems to always set the high mantissa bit on NaNs. Fixed: tint:76 Change-Id: I06c69b93b04c869a63ec2f574022996acc7a6dbe Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/52321 Commit-Queue: David Neto <dneto@google.com> Auto-Submit: David Neto <dneto@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Ben Clayton <bclayton@google.com>
40 lines
1.4 KiB
C++
40 lines
1.4 KiB
C++
// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_WRITER_FLOAT_TO_STRING_H_
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#define SRC_WRITER_FLOAT_TO_STRING_H_
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#include <string>
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namespace tint {
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namespace writer {
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/// Converts the float `f` to a string using fixed-point notation (not
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/// scientific). The float will be printed with the full precision required to
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/// describe the float. All trailing `0`s will be omitted after the last
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/// non-zero fractional number, unless the fractional is zero, in which case the
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/// number will end with `.0`.
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/// @return the float f formatted to a string
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std::string FloatToString(float f);
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/// Converts the float `f` to a string, using hex float notation for infinities,
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/// NaNs, or subnormal numbers. Otherwise behaves as FloatToString.
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/// @return the float f formatted to a string
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std::string FloatToBitPreservingString(float f);
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} // namespace writer
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} // namespace tint
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#endif // SRC_WRITER_FLOAT_TO_STRING_H_
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