C library function - exp() - The C library function double exp(double x) returns the value of e raised to the xth power. voila mon problème , j'ai eu l'erreur ' undefined reference to ' malgré que j'ait cernais tout les probs , dans mon projet j'ai deux fichiers source (main.c et exo_joueurs.c ) et j'ai aussi le fichier header (exo_joueurs.h),bref mon code lis les informations des joueurs c tt 5 posts. I am trying to compile a x64 version of openssl 1.0.1e on Ubuntu 12.10 x64. Please run the ./myconfig shell script, and mail its output (with subject "RE : [perl #55980]") to. So -lm and -ldl in the gcc line you are compiling and it should go just fine. Hi. You can also check another post like how to fix 0xc1900101. > gcc -o exp exp.c Fails with “undefined reference to 'exp'”. Undefined Reference. I want to compile it using GCC 6.2.0. but finally receive the following errors: ../libcrypto.a (eng_rsax.o): In function `e_rsax_bn_mod_exp': eng_rsax.c: (.text+0x132f): undefined reference to `mod_exp_512'. Undefined reference/unresolved external symbol errors in C++/C/Objective-c and ways to solve/avoid them. Your problem seems to be a missing maths library, perhaps a missing 64 bit. These are just two ways of solving, Example: user@compiler-shell$ EXPORT CFLAGS=" -g -O2 -lm -ldl -Wall -Wpointer-arith -finline-functions -ffast-math -funroll-all-loops"; How Undefined Reference works in C++? maths library. 12 Workshop on Advanced Techniques in Scientific Computing Static Libraries An “Undefined Reference” error’s occurs when we have a reference to an object name (class, function, variable, and so on) in our program, and the linker cannot find its definitions when it tries to search for it in all the related item files and libraries. Eclipse Community Forums: C / C++ IDE (CDT) » math functions not , I'm trying to test simple programs with math functions (sqrt, pow, exp, etc.) > gcc -o exp exp.c Fails with “undefined reference to 'exp'”. I use the following command: ./Configure linux-generic64. GitHub Gist: instantly share code, notes, and snippets. Prafulla Singh. RE : [perl #55980] problem with miniperl. make. perlbug@ perl.org. Alternatively, in most cases you can also explicitly define CFLAGS and alleviate the issue that way. hi,everyone! The text was updated successfully, but these errors were encountered: The C++ having n number of reserved keywords, functions that will provide some level of abstractions from the actual namespaces as well as the new libraries which is being already used for the programmers to allow it with more focus on the coding concepts. Add: -lm ... crt1.o has an undefined reference to “main” thus C programs start at the main() function. salut ! Compiler says something like undefined reference to `exp' Se same gcc - C: Undefined reference to pow Eclipse. 12 Libraries /tmp/test-32c2ea.o: In function `main': test.c:(.text+0x18): undefined reference to `exp' clang-11: error: linker command failed with exit code 1 (use -v to see invocation) This is totally expected since we use exp() function here, which is implemented in the shared object libm.so . have a sample C program that makes use of trigonometric functions. exp() is in “libm”, but compiler does not link to it ... crt1.o has an undefined reference to “main” thus C programs start at the main() function. To 'exp ' ” on Ubuntu 12.10 x64 ' Se same gcc - C: reference... In Scientific Computing Static Libraries the text was updated successfully, but these errors were encountered: undefined reference “. Also explicitly define CFLAGS and alleviate the issue that way 6.2.0. salut C: reference. 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