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 UWA week 39 (2nd semester, week 9) ↓
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helpful
2:02pm Tue 27th Sep, ANONYMOUS

Hello,

I'm just finishing off the lab sheet from last week but I am facing a problem when using strdup(). I've defined _POSIX_C_SOURCE as 200809L before the statement that includes the string.h header file as follows:

#define _POSIX_C_SOURCE     200809L
#include <string.h>

However, when I attempt to compile the file I still get this error:

error: implicit declaration of function ‘strdup’; did you mean ‘strcmp’? [-Werror=implicit-function-declaration]

For reference I'm adding "cc -std=c11 -Wall -Werror" to the command line when compiling. When I simply do "gcc -o concordance concordance.c" it works fine.

Could someone please help me with this issue?

Thanks

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