simplereader: Fix compilation

[olheureu]

Compilation of "simplereader.c" failed with an error message, on ARM7 embedded linux and GCC 9.3.0:

  arm-ngrave-linux-gnueabi-gcc -mthumb -mfpu=neon-vfpv4 -mfloat-abi=hard -mcpu=cortex-a7 --sysroot=[...] -c -pipe  -O2 -pipe -g -feliminate-unused-debug-types -ffunction-sections -fdata-sections -Wall -Wextra -fPIC -DNDEBUG -I. -I../src -I/[...]/mkspecs/linux-oe-g++ -o simplereader.o simplereader.c
  simplereader.c: In function 'main':
  simplereader.c:181:19: error: 'CborValue' {aka 'struct CborValue'} has no member named 'ptr'
    181 |                 it.ptr - buf, cbor_error_string(err));
        |                   ^
  Makefile:653: recipe for target 'simplereader.o' failed
  make: *** [simplereader.o] Error 1

Fixing the error is pretty simple, because the "struct CborValue" is defined in "src/cbor.h" as:

struct CborValue
 {
     const CborParser *parser;
     union {
         const uint8_t *ptr;
         void *token;
     } source;
     [...]
 };

So we need to specify the "source" member of the "struct CborValue", between "it" and "ptr":

"it.ptr" -> "it.source.ptr"

This fixes the compilation error.

Signed-off-by: Olivier L'Heureux [email protected]
Signed-off-by: Xavier Hendrickx [email protected]
Reviewed-by: Evgeny Beysembaev [email protected]

[thiagomacieira]

This is correct, but can you use cbor_value_get_next_byte(&it) instead?

[olheureu]

Good idea, I will adapt this PR. I'll need a bit of time...