https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67095
Bug ID: 67095
Summary: errno for logf(-1.f)
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: ka_bena at yahoo dot fr
Target Milestone: ---
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <math.h>
int main(void)
{
float A = -1.f ;
float B = logf(A);
printf ( "B = %f \n" , B ) ;
printf ( "errno = %d \n" , errno ) ;
float C = sqrtf(A);
printf ( "C = %f \n" , C ) ;
printf ( "errno = %d \n" , errno ) ;
return 0;
}
/* Compilation and linkage */
/* ---------- Capture Output ---------- */
/* */
/* > "E:\PAPA\test_gcc\C99\COMPIL_C\compil_c99.bat" */
/* main_errno_gcc4.8.0 */
/* E:\PAPA\test_gcc\FONCTIONS\FORBA\MAIN_TEST\main_errno_gcc4.8.0.c*/
/* */
/* Utilisation des specs internes. */
/* */
/* COLLECT_GCC=d:\gfortran\bin\gcc.exe */
/* */
/* COLLECT_LTO_WRAPPER= */
/* d:/gfortran/bin/../libexec/gcc/mingw32/4.8.0/lto-wrapper.exe */
/* */
/* Target: mingw32 */
/* */
/* Configuré avec: */
/* ../gcc-trunk/configure --prefix=/mingw --enable-languages=c , */
/* fortran,lto --with-gmp=/home/brad/gfortran/dependencies */
/* --disable-werror --enable-threads --enable-nls */
/* --build=i586-pc-mingw32 --enable-libgomp --enable-shared */
/* --disable-win32-registry --with-dwarf2 */
/* --disable-sjlj-exceptions */
/* --enable-lto --build=mingw32 */
/* --enable-version-specific-runtime-libs */
/* */
/* Modèle de thread: win32 */
/* */
/* gcc version 4.8.0 20130302 (experimental) */
/* [trunk revision 196403] */
/* (GCC) */
/* */
/* COLLECT_GCC_OPTIONS='-v' '-std=c99' '-Warray-bounds' '-Wall' */
/* '-Wextra' '-Waddress' '-Wbad-function-cast' '-Wformat=1' */
/* '-Wformat-contains-nul' '-Wformat-extra-args' */
/* '-Wformat-nonliteral' */
/* '-Wformat-security' '-Wformat-zero-length' */
/* '-Wsuggest-attribute=format' '-Woverlength-strings' */
/* '-malign-stringops' */
/* '-o' 'E:\PAPA\test_gcc\EXE\main_errno_gcc4.8.0_C99.exe' */
/* '-mtune=i386' '-march=i386' */
/* d:/gfortran/bin/../libexec/gcc/mingw32/4.8.0/cc1.exe */
/* -quiet -v -iprefix d:\gfortran\bin\../lib/gcc/mingw32/4.8.0/ */
/* E:\PAPA\test_gcc\FONCTIONS\FORBA\MAIN_TEST\ */
/* main_errno_gcc4.8.0.c */
/* -quiet -dumpbase main_errno_gcc4.8.0.c -malign-stringops */
/* -mtune=i386 -march=i386 -auxbase main_errno_gcc4.8.0 */
/* -Warray-bounds -Wall -Wextra -Waddress -Wbad-function-cast */
/* -Wformat=1 -Wformat-contains-nul -Wformat-extra-args */
/* -Wformat-nonliteral -Wformat-security */
/* -Wformat-zero-length -Wsuggest-attribute=format */
/* -Woverlength-strings -std=c99 -version */
/* -o C:\DOCUME~1\Jupiter\LOCALS~1\Temp\ccHKpeRr.s */
/* */
/* GNU C (GCC) version 4.8.0 20130302 (experimental) */
/* [trunk revision 196403] (mingw32) */
/* */
/* compiled by GNU C version 4.8.0 20130302 (experimental) */
/* [trunk revision 196403], GMP version 5.0.2, MPFR version 3.1.0,*/
/* MPC version 0.9 */
/* */
/* heuristiques GGC: --param ggc-min-expand=30 */
/* --param ggc-min-heapsize=4096 */
/* */
/* le répertoire */
/* « d:\gfortran\bin\../lib/gcc/mingw32/4.8.0/../../../../ */
/* mingw32/include » est ignoré car inexistant */
/* */
/* le répertoire */
/* « d:/gfortran/lib/gcc/../../lib/gcc/mingw32/4.8.0/include » */
/* est ignoré car présent deux fois */
/* */
/* le répertoire « /mingw/include » est ignoré car inexistant */
/* */
/* le répertoire « d:/gfortran/lib/gcc/../../ */
/* lib/gcc/mingw32/4.8.0/include-fixed » est ignoré */
/* car présent deux fois */
/* */
/* le répertoire */
/* « d:/gfortran/lib/gcc/../../lib/gcc/mingw32/4.8.0/../../../../ */
/* mingw32/include » est ignoré car inexistant */
/* */
/* le répertoire « /mingw/include » est ignoré car inexistant */
/* la recherche pour #include "..." débute ici : */
/* la recherche pour #include <...> débute ici: */
/* d:\gfortran\bin\../lib/gcc/mingw32/4.8.0/include */
/* d:\gfortran\bin\../lib/gcc/mingw32/4.8.0/../../../../include */
/* d:\gfortran\bin\../lib/gcc/mingw32/4.8.0/include-fixed */
/* C:/MinGW/lib/gcc/mingw32/../../../include */
/* */
/* Fin de la liste de recherche. */
/* */
/* GNU C (GCC) version 4.8.0 20130302 (experimental) */
/* [trunk revision 196403] (mingw32) */
/* compiled by GNU C version 4.8.0 20130302 (experimental) */
/* [trunk revision 196403], GMP version 5.0.2, */
/* MPFR version 3.1.0, MPC version 0.9 */
/* */
/* heuristiques GGC: --param ggc-min-expand=30 */
/* --param ggc-min-heapsize=4096 */
/* Compiler executable checksum: a5b5d1d62cd7b863e15d5fc90ca5c31d */
/* */
/* COLLECT_GCC_OPTIONS='-v' '-std=c99' '-Warray-bounds' '-Wall' */
/* '-Wextra' '-Waddress' '-Wbad-function-cast' '-Wformat=1' */
/* '-Wformat-contains-nul' '-Wformat-extra-args' */
/* '-Wformat-nonliteral' '-Wformat-security' */
/* '-Wformat-zero-length' */
/* '-Wsuggest-attribute=format' '-Woverlength-strings' */
/* '-malign-stringops' */
/* '-o' 'E:\PAPA\test_gcc\EXE\main_errno_gcc4.8.0_C99.exe' */
/* '-mtune=i386' '-march=i386' */
/* as -v -o C:\DOCUME~1\Jupiter\LOCALS~1\Temp\cce1KqsO.o */
/* C:\DOCUME~1\Jupiter\LOCALS~1\Temp\ccHKpeRr.s */
/* */
/* Version de l'assembleur GNU 2.21 (mingw32) */
/* utilisant la version BFD (GNU Binutils) 2.21 */
/* */
/* COMPILER_PATH=d:/gfortran/bin/../libexec/gcc/mingw32/4.8.0/; */
/* d:/gfortran/bin/../libexec/gcc/ */
/* */
/* LIBRARY_PATH=d:/gfortran/bin/../lib/gcc/mingw32/4.8.0/; */
/* d:/gfortran/bin/../lib/gcc/;d:/gfortran/bin/../ */
/* lib/gcc/mingw32/4.8.0/../../../ */
/* */
/* COLLECT_GCC_OPTIONS='-v' '-std=c99' '-Warray-bounds' '-Wall' */
/* '-Wextra' '-Waddress' '-Wbad-function-cast' '-Wformat=1' */
/* '-Wformat-contains-nul' '-Wformat-extra-args' */
/* '-Wformat-nonliteral' */
/* '-Wformat-security' '-Wformat-zero-length' */
/* '-Wsuggest-attribute=format' */
/* '-Woverlength-strings' */
/* '-malign-stringops' */
/* '-o' 'E:\PAPA\test_gcc\EXE\main_errno_gcc4.8.0_C99.exe' */
/* '-mtune=i386' '-march=i386' */
/* */
/* d:/gfortran/bin/../libexec/gcc/mingw32/4.8.0/collect2.exe */
/* -Bdynamic -o E:\PAPA\test_gcc\EXE\main_errno_gcc4.8.0_C99.exe */
/* d:/gfortran/bin/../lib/gcc/mingw32/4.8.0/../../../crt2.o */
/* d:/gfortran/bin/../lib/gcc/mingw32/4.8.0/crtbegin.o */
/* -Ld:/gfortran/bin/../lib/gcc/mingw32/4.8.0 */
/* -Ld:/gfortran/bin/../lib/gcc */
/* -Ld:/gfortran/bin/../lib/gcc/mingw32/4.8.0/../../.. */
/* C:\DOCUME~1\Jupiter\LOCALS~1\Temp\cce1KqsO.o -lm -lmingw32 */
/* -lgcc */
/* -lgcc_eh -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 */
/* -luser32 -lkernel32 -lmingw32 -lgcc -lgcc_eh -lmoldname */
/* -lmingwex -lmsvcrt */
/* d:/gfortran/bin/../lib/gcc/mingw32/4.8.0/crtend.o */
/* */
/* > Terminated with exit code 0. */
/* */
/* OUTPUT */
/* */
/*---------- Capture Output ---------- */
/* */
/*> "E:\PAPA\test_gcc\C99\RUN_C\run_C99.bat" main_errno_gcc4.8.0 */
/* */
/*E:\PAPA\test_gcc\EXE> */
/*E:\PAPA\test_gcc\exe\main_errno_gcc4.8.0_C99.exe */
/* */
/*B = nan */
/*errno = 0 */
/*C = nan */
/*errno = 33 */
/* */
/*> Terminated with exit code 0. */
