mirror of
https://github.com/Unidata/netcdf-c.git
synced 2024-12-27 08:49:16 +08:00
9c319b134a
This addresses a type-punning warning in gcc:
gcc11 warns about one of the strict aliasing violations:
d4util.h:44:7: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
44 | *((unsigned int*)ip) = u.i; \
| ~^~~~~~~~~~~~~~~~~~
d4dump.c:51:13: note: in expansion of macro 'swapinline32'
51 | swapinline32(v.u64);
| ^~~~~~~~~~~~
Signed-off-by: Egbert Eich <eich@suse.com>
110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
/* Copyright 2018, UCAR/Unidata.
|
|
See the COPYRIGHT file for more information.
|
|
*/
|
|
|
|
#include "d4includes.h"
|
|
|
|
/*
|
|
Provide a simple dump of binary data
|
|
*/
|
|
|
|
/**************************************************/
|
|
|
|
void
|
|
NCD4_dumpbytes(size_t size, const void* data0, int swap)
|
|
{
|
|
size_t extended;
|
|
void* data;
|
|
char* pos;
|
|
size_t i;
|
|
|
|
extended = size + 8;
|
|
data = calloc(1,extended); /* provide some space to simplify the code */
|
|
memcpy(data,data0,size);
|
|
for(i=0,pos=data;i<size; pos++,i++) {
|
|
struct {
|
|
unsigned char u8[1];
|
|
signed char i8[1];
|
|
unsigned short u16[1];
|
|
short i16[1];
|
|
unsigned int u32[1];
|
|
int i32[1];
|
|
unsigned long long u64[1];
|
|
long long i64[1];
|
|
float f32[1];
|
|
double f64[1];
|
|
char s[8];
|
|
} v;
|
|
v.s[0] = *((char*)pos);
|
|
v.s[1] = '\0';
|
|
v.u8[0] = *((unsigned char*)pos);
|
|
v.i8[0] = *((signed char*)pos);
|
|
v.u16[0] = *((unsigned short*)pos);
|
|
v.i16[0] = *((short*)pos);
|
|
v.u32[0] = *((unsigned int*)pos);
|
|
v.i32[0] = *((int*)pos);
|
|
v.u64[0] = *((unsigned long long*)pos);
|
|
v.i64[0] = *((long long*)pos);
|
|
if(swap) {
|
|
swapinline16(v.u16);
|
|
swapinline32(v.u32);
|
|
swapinline64(v.u64);
|
|
swapinline16(v.i16);
|
|
swapinline32(v.i32);
|
|
swapinline64(v.i64);
|
|
swapinline32(v.f32);
|
|
swapinline64(v.f64);
|
|
}
|
|
if(v.s[0] == '\r') strcpy(v.s,"\\r");
|
|
else if(v.s[0] == '\n') strcpy(v.s,"\\n");
|
|
else if(v.s[0] < ' ' || v.s[0] >= 0x7f) v.s[0] = '?';
|
|
fprintf(stderr,"[%03lu] %02x %03u %4d", (unsigned long)i, v.u8[0], v.u8[0], v.i8[0]);
|
|
fprintf(stderr," 0x%08x %12u %13d", v.u32[0], v.u32[0], v.i32[0]);
|
|
fprintf(stderr," 0x%04x %06u %7d", v.u16[0], v.u16[0], v.i16[0]);
|
|
fprintf(stderr," '%s'\n",v.s);
|
|
fflush(stderr);
|
|
}
|
|
}
|
|
|
|
void
|
|
NCD4_tagdump(size_t size, const void* data0, int swap, const char* tag)
|
|
{
|
|
fprintf(stderr,"++++++++++ %s ++++++++++\n",tag);
|
|
NCD4_dumpbytes(size,data0,swap);
|
|
fprintf(stderr,"++++++++++ %s ++++++++++\n",tag);
|
|
fflush(stderr);
|
|
}
|
|
|
|
/* Dump the variables in a group */
|
|
void
|
|
NCD4_dumpvars(NCD4node* group)
|
|
{
|
|
int i;
|
|
fprintf(stderr,"%s.vars:\n",group->name);
|
|
for(i=0;i<nclistlength(group->vars);i++) {
|
|
NCD4node* var = (NCD4node*)nclistget(group->vars,i);
|
|
NCD4node* type;
|
|
|
|
switch (var->subsort) {
|
|
default:
|
|
type = var->basetype;
|
|
fprintf(stderr,"<%s name=\"%s\"/>\n",type->name,var->name);
|
|
break;
|
|
case NC_STRUCT:
|
|
fprintf(stderr,"<%s name=\"%s\"/>\n","Struct",var->name);
|
|
break;
|
|
case NC_SEQ:
|
|
fprintf(stderr,"<%s name=\"%s\"/>\n","Sequence",var->name);
|
|
break;
|
|
}
|
|
}
|
|
fflush(stderr);
|
|
}
|
|
|
|
union ATOMICS*
|
|
NCD4_dumpatomic(NCD4node* var, void* data)
|
|
{
|
|
union ATOMICS* p = (union ATOMICS*)data;
|
|
return p;
|
|
}
|