undefined reference to `sqrt'

Exypnos answered on May 19, 2021 Popularity 9/10 Helpfulness 5/10

answer undefined reference to `sqrt'

undefined reference to `sqrt'

Comments(1)

The math library must be linked in when building the executable.
How to do this varies by environment, but in Linux/Unix, just add
-lm to the command:

gcc test.c -o test -lm

The math library is named libm.so, and the -l command option
assumes a lib prefix and .a or .so suffix.

Credit: wallyk

Popularity 9/10 Helpfulness 5/10 Language c

Source: stackoverflow.com

Tags: c undefined-reference

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