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Side by Side Diff: fusl/src/math/logb.c

Issue 1714623002: [fusl] clang-format fusl (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: headers too Created 4 years, 10 months ago
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« fusl/arch/aarch64/atomic_arch.h ('K') | « fusl/src/math/log2l.c ('k') | fusl/src/math/logbf.c » ('j') | no next file with comments »
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1 #include <math.h> 1 #include <math.h>
2 2
3 /* 3 /*
4 special cases: 4 special cases:
5 » logb(+-0) = -inf, and raise divbyzero 5 logb(+-0) = -inf, and raise divbyzero
6 » logb(+-inf) = +inf 6 logb(+-inf) = +inf
7 » logb(nan) = nan 7 logb(nan) = nan
8 */ 8 */
9 9
10 double logb(double x) 10 double logb(double x) {
11 { 11 if (!isfinite(x))
12 » if (!isfinite(x)) 12 return x * x;
13 » » return x * x; 13 if (x == 0)
14 » if (x == 0) 14 return -1 / (x * x);
15 » » return -1/(x*x); 15 return ilogb(x);
16 » return ilogb(x);
17 } 16 }
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« fusl/arch/aarch64/atomic_arch.h ('K') | « fusl/src/math/log2l.c ('k') | fusl/src/math/logbf.c » ('j') | no next file with comments »

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