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authorSimon Marchi <simon.marchi@polymtl.ca>2020-11-20 11:17:33 -0500
committerSimon Marchi <simon.marchi@efficios.com>2020-11-20 11:19:38 -0500
commitc0ad05d567796104f55d388b5d5b21da8fa47de2 (patch)
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parenta43b29c90d8efa1013cb4b6bc49bb78de5e79784 (diff)
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gdb: fix unittests/gmp-utils-selftests.c build on solaris
When building on solaris (gcc farm machine gcc211), I get: CXX unittests/gmp-utils-selftests.o /export/home/simark/src/binutils-gdb/gdb/unittests/gmp-utils-selftests.c: In function 'void selftests::gdb_mpz_read_all_from_small()' : /export/home/simark/src/binutils-gdb/gdb/unittests/gmp-utils-selftests.c:128:43: error: call of overloaded 'pow(int, int)' is ambiguous LONGEST l_min = -pow (2, buf_len * 8 - 1); ^ In file included from /opt/csw/lib/gcc/sparc-sun-solaris2.10/5.5.0/include-fixed/math.h:22:0, from ../gnulib/import/math.h:27, from /export/home/simark/src/binutils-gdb/gdb/unittests/gmp-utils-selftests.c:23: /opt/csw/lib/gcc/sparc-sun-solaris2.10/5.5.0/include-fixed/iso/math_iso.h:210:21: note: candidate: long double std::pow(long double, long double) inline long double pow(long double __X, long double __Y) { return ^ /opt/csw/lib/gcc/sparc-sun-solaris2.10/5.5.0/include-fixed/iso/math_iso.h:170:15: note: candidate: float std::pow(float, float) inline float pow(float __X, float __Y) { return __powf(__X, __Y); } ^ /opt/csw/lib/gcc/sparc-sun-solaris2.10/5.5.0/include-fixed/iso/math_iso.h:71:15: note: candidate: double std::pow(double, double) extern double pow __P((double, double)); ^ The "pow" function overloads only exist for float-like types, and the compiler doesn't know which one we want. Change "2" for "2.0", which makes the compiler choose one alternative (the double one, I believe). gdb/ChangeLog: * unittests/gmp-utils-selftests.c (gdb_mpz_read_all_from_small): Pass 2.0 to pow. (gdb_mpz_write_all_from_small): Likewise. Change-Id: Ied2ae0f01494430244a7c94f8a38b07d819f4213
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