c4920bca4a
Fast_float is a C++ header-only library to parse doubles using SIMD instructions. The purpose is to speed up sorted sets and other commands that use doubles. A single-file copy of fast_float is included in this repo. This introduces an optional dependency on a C++ compiler. The use of fast_float is enabled at compile time using the make variable `USE_FAST_FLOAT=yes`. It is disabled by default. Fixes #1069. --------- Signed-off-by: Parth Patel <661497+parthpatel@users.noreply.github.com> Signed-off-by: Parth <661497+parthpatel@users.noreply.github.com> Signed-off-by: Madelyn Olson <madelyneolson@gmail.com> Signed-off-by: Viktor Söderqvist <viktor.soderqvist@est.tech> Co-authored-by: Roshan Swain <swainroshan001@gmail.com> Co-authored-by: Madelyn Olson <madelyneolson@gmail.com> Co-authored-by: Viktor Söderqvist <viktor.soderqvist@est.tech>
38 lines
1.1 KiB
Makefile
38 lines
1.1 KiB
Makefile
CCCOLOR:="\033[34m"
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SRCCOLOR:="\033[33m"
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ENDCOLOR:="\033[0m"
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CXX?=c++
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# we need = instead of := so that $@ in QUIET_CXX gets evaluated in the rule and is assigned appropriate value.
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TEMP:=$(CXX)
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QUIET_CXX=@printf ' %b %b\n' $(CCCOLOR)C++$(ENDCOLOR) $(SRCCOLOR)$@$(ENDCOLOR) 1>&2;
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CXX=$(QUIET_CXX)$(TEMP)
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WARN=-Wall -W -Wno-missing-field-initializers
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STD=-pedantic -std=c++11
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OPT?=-O3
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CLANG := $(findstring clang,$(shell sh -c '$(CC) --version | head -1'))
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ifeq ($(OPT),-O3)
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ifeq (clang,$(CLANG))
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OPT+=-flto
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else
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OPT+=-flto=auto -ffat-lto-objects
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endif
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endif
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# 1) Today src/Makefile passes -m32 flag for explicit 32-bit build on 64-bit machine, via CFLAGS. For 32-bit build on
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# 32-bit machine and 64-bit on 64-bit machine, CFLAGS are empty. No other flags are set that can conflict with C++,
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# therefore let's use CFLAGS without changes for now.
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# 2) FASTFLOAT_ALLOWS_LEADING_PLUS allows +inf to be parsed as inf, instead of error.
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CXXFLAGS=$(STD) $(OPT) $(WARN) -static -fPIC -fno-exceptions $(CFLAGS) -D FASTFLOAT_ALLOWS_LEADING_PLUS
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.PHONY: all clean
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all: fast_float_strtod.o
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clean:
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rm -f *.o || true;
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