使用strfry函数的返回值报错Segmentation fault
#include <stdio.h>#include <string.h>
#define _GNU_SOURCE
#define SOURCE_BUF_SIZE16
int main(){
char source = "1234567890";
char *dest = NULL;
dest = (char *) strfry (source);
//printf ("dest == %p\n", dest);
//printf ("dest == %s\n", dest);
for(int a = 0;;a++){
if(*(dest+a) != '\0'){
putchar(*(dest+a));
}else{
break;
}
}
return 0;
}
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/8/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 8.3.0-6' --with-bugurl=file:///usr/share/doc/gcc-8/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-8 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 8.3.0 (Debian 8.3.0-6)
谢谢
这个代码，我这边没问题
#include <stdio.h>
#define __USE_GNU
#include <string.h>
#define SOURCE_BUF_SIZE16
int main(){
char source = "1234567890";
char *dest = NULL;
dest = (char *) strfry (source);
//printf ("dest == %p\n", dest);
//printf ("dest == %s\n", dest);
for(int a = 0;;a++){
if(*(dest+a) != '\0'){
putchar(*(dest+a));
}else{
break;
}
}
return 0;
}
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