log10l(3)

1log10(3)                   Library Functions Manual                   log10(3)
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NAME

6       log10, log10f, log10l -  base-10 logarithmic function
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LIBRARY

9       Math library (libm, -lm)
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SYNOPSIS

12       #include <math.h>
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14       double log10(double x);
15       float log10f(float x);
16       long double log10l(long double x);
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18   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
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20       log10f(), log10l():
21           _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
22               || /* Since glibc 2.19: */ _DEFAULT_SOURCE
23               || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
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DESCRIPTION

26       These functions return the base 10 logarithm of x.
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RETURN VALUE

29       On success, these functions return the base 10 logarithm of x.
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31       For  special  cases,  including where x is 0, 1, negative, infinity, or
32       NaN, see log(3).
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ERRORS

35       See math_error(7) for information on how to determine whether an  error
36       has occurred when calling these functions.
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38       For  a discussion of the errors that can occur for these functions, see
39       log(3).
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ATTRIBUTES

42       For an  explanation  of  the  terms  used  in  this  section,  see  at‐
43       tributes(7).
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45       ┌────────────────────────────────────────────┬───────────────┬─────────┐
46       │Interface                                   │ Attribute     │ Value   │
47       ├────────────────────────────────────────────┼───────────────┼─────────┤
48       │log10(), log10f(), log10l()                 │ Thread safety │ MT-Safe │
49       └────────────────────────────────────────────┴───────────────┴─────────┘
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STANDARDS

52       C11, POSIX.1-2008.
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HISTORY

55       C99, POSIX.1-2001.
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57       The variant returning double also conforms to SVr4, 4.3BSD, C89.
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