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Questions tagged [xlc]

xlc or xlC is the command to invoke IBM XL C or C++ compiler. It is used on IBMs proprietary platforms like Blue Gene, AIX, z/OS, and z/VM

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Equivalent -rdynamic flag in xlc compiler

Is there an equivalent to the -rdynamic flag (gcc) into xlc compiler in AIX? Thank you.
Bob
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IBM XL C/C++ Compiler: "No valid target devices available"

I'm compiling some OpenMP 4.5 code with the IBM XL C/C++ compiler with the intention of offloading some of its work to a GPU, like so: xlc++ mycode.cpp -qsmp=omp -qreport -qoffload -std=c++11 -Wall Compilation seems to be successful, giving me only…
Richard
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What does `1587-163` mean from the IBM XL C/C++ compiler

I've compiled some code with the IBM XL C/C++ compiler v13.1.6 (13.01.0006.0000). My program is ending by printing the message 1587-163 Without any additional information. What does this mean?
Richard
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Availability of #include with xlC on AIX 4.3

Is there a version of xlC/VACPP available for AIX 4.3, which does not choke when given following source: #include int main(void) { return 0; } If yes, is it still available anywhere?
Kosi2801
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The parameter type is not valid for a function of this linkage type

I'm working on AIX with IBM's XL C compiler. I'm catching a compile error and I'm not sure how to proceed: $ xlc -g3 -O0 -qarch=pwr8 -qaltivec fips197-p8.c -o fips197-p8.exe "fips197-p8.c", line 59.16: 1506-754 (W) The parameter type is not valid…
jww
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What is xlsmp in AIX?

I have istalled the Xlc compiler for AIX one of the library it installs is: /usr/lpp/xlsmp.rte/xlsmp.rte/3.1.0.6/liblpp.a. I am curious to know What is xlsmp? What does this library contain?
Starfish
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IBM XL C/C++ Compiler: check compiler mode using preprocessor directive

I am trying to compile a sample c++ file test.cpp using IBM xlC compiler on AIX system. The file should be compiled in both 32-bit and 64-bit modes. I am using following commands to compile them in both modes: xlC test.cpp (default compiler mode is…
Jatin Sanghvi
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What input to sprintf would produce 0 result?

I am trying to debug a problem unrelated to this specific code and I am looking for clues, the clue being "what value might this counter have had?" The following line of code sprintf(strAtLeast10long, "%lld%c%.02uP", input/peta, decimal,…
Charles
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XlC flag qhalt issue

I'm using xlC 13.1.5 and CMake 3.5. When I try to compile an MPI package using CMake, I get the following error: /opt/ibm/xlC/13.1.5/bin/.orig/xlc_r: warning: 1501-269 fpic is not supported on this Operating System platform. Option fpic will be…
unrue
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Why does the xlc++ compiler complain about casting an rvalue?

On z/OS the pthread_t type is a struct that contains a member char __[8];. I tried to cast this from a return value to an int64_t. I got following error: CCN5216 (S) An expression of type "char [8]" cannot be converted to type "int64_t" But if I…
Christian Ammer
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Split generation of a Shared Object library (.so) file into two pass instead of one

I am trying to build a shared library lib_test.so from 'test.c' & test.exp files. This lib_test.so file will be used as a extension to another application. The application doc specifies generation of tle lib_test.so file directly in a single pass by…
Anirban
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What does "Duplicate symbol: __fe_def_env" mean?

When building a shared library on AIX with xlc, you see this linker warning: ld: 0711-224 WARNING: Duplicate symbol: __fe_def_env To reproduce, use this source file fenvtest.c: #include void exported_func() { fenv_t f; …
patrickmdnet
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XL C Error for explicitly defined enum

When compiling a header file using XL C on AIX, I get a (1506-045 (S)) "Undeclared Identifier " error for each enumerated value of an enumerated type being defined. For the life of me, I can't find any syntax or logical errors in the file, and there…
Mr. Gravy
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How to write informations needed in an executable file

I wanted to know if you knew a command or a way to write as comment or string inside of the executable file. Indeed I already did this, with XLC compiler I did it with the #pragma comment(user, "string") however now I have to change to GCC but…
Ežekiel
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The text "<" is unexpected when compiling with Xlc_r IBM compiler

I have a problem with the compiling of code with the xlC_r compiler on AIX OS. I have attached my code below which is causing the problem. I have tried to compile the code on MS Windows with microsoft compiler and also compiled it under Linux with…
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