L

The functions, macros, and data structures in the C library are described here in alphabetical order.

A ¦ B ¦ C ¦ D ¦ E ¦ F ¦ G ¦ H ¦ I ¦ J ¦ K ¦ L ¦ M ¦ N ¦ O ¦ P ¦ Q ¦ R ¦ S ¦ T ¦ U ¦ V ¦ W ¦ X ¦ Y ¦ Z

The following are described elsewhere:

For information about:	See:
LOG_MASK()	setlogmask()
LOG_UPTO()	setlogmask()

This chapter describes the API components whose names begin with “L”.

labs()
Calculate the absolute value of a long integer
lchown()
Change the user ID and group ID of a file or symbolic link
lcong48()
Initialize a sequence of pseudo-random numbers
ldexp(), ldexpf(), ldexpl()
Load exponent: multiply a floating-point number by an integral power of 2
ldiv(), lldiv()
Perform division on long or long long integers
lfind()
Find an entry in a linear search table
lgamma(), lgamma_r(), lgammaf(), lgammaf_r(), lgammal(), lgammal_r()
Log gamma function
link()
Create a link to an existing file
lio_listio(), lio_listio64()
Initiate a list of I/O requests
listen()
Listen for connections on a socket
llabs()
Calculate the absolute value of a long long integer
llrint(), llrintf(), llrintl()
Round a floating-point number to the nearest integer value, using the current rounding direction
llround(), llroundf(), llroundl()
Round a floating-point number to the nearest integer value
localeconv()
Set numeric formatting according to the current locale
localtime()
Convert calendar time to local time
localtime_r()
Convert calendar time to local time
lockf(), lockf64()
Lock or unlock a section of a file
log(), logf(), logl()
Compute the natural logarithm of a number
log10(), log10f(), log10l()
Compute the logarithm (base 10) of a number
log1p(), log1pf(), log1pl()
Log(1+x)
log2(), log2f(), log2l()
Compute the base-2 logarithm of a number
logb(), logbf(), logbl()
Compute the radix-independent exponent
login_tty()
Prepare for a login in a tty
longjmp()
Restore the environment saved by setjmp()
lrand48()
Generate a pseudo-random nonnegative long integer
lrint(), lrintf(), lrintl()
Round a floating-point number to the nearest integer value, using the current rounding direction
lround(), lroundf(), lroundl()
Round a floating-point number to the nearest integer value
lsearch()
Perform a linear search in an array
lseek(), lseek64()
Set the current file position at the operating-system level
lstat(), lstat64()
Get information about a file or directory
ltoa(), lltoa()
Convert a long integer into a string, using a given base
ltrunc()
Truncate a file at a given position