uint32_t is 32-bit unsigned integer type. To get this type in your program include or . (corresponding C++ files if you want these types in a C++ code)
Use PRIu32 and SCNu32 to print and scanf this type.
Questions tagged [uint32-t]
73 questions
1
vote
1 answer
Assigning a string to a char value from a struct
I'm trying to assign a string to a char value from a struct
typedef struct blah_param_s {
struct blah_param_s* param_next;
blah_param_type_t param_type;
} blah_param_t;
typedef struct blah_param_char_s {
blah_param_t param_hdr;
…
edlo
- 11
- 1
1
vote
3 answers
error : conflicting declaration for uint32_t
When I try to compile my program first I got this error:
error: ‘uint32_t’ does not name a type
Then I included
#include
Now it turned out this error:
/include/stdint.h:52: error: conflicting declaration ‘typedef unsigned int…
clouddy
- 891
- 2
- 8
- 10
1
vote
2 answers
PC-Lint error assigning unsigned int value to uint32_t variable
I have the following line of code:
uint32_t address = 0x40000000U;
This gives the following 3 PC-Lint errors when using the au-misra2.lnt configuration file:
"*** LINT: "D:\_SVN\LPC1788-32 Dev Kit\Bootloader--4\Loadware\source\led.c"(7, 35) Note…
Mark
- 1,759
- 4
- 32
- 44
1
vote
3 answers
Read bits from uint32_t
I want to use a function that returns a uint32_t which is supposed to contain 8 bits of information, in little-endian format. Could someone give me some C++ code on how to extract these bits from the uint32_t type into chars, booleans or into any…
venkman
- 91
- 2
- 9
1
vote
2 answers
C type declaration intN_t
How does the header stdint.h define u32 to be 32 bits on every machine? Could somebody elaborate on the process that stdint.h does to make this happen? Where can I find my machine's (Windows 7) stdint.h file?
CodeKingPlusPlus
- 15,383
- 51
- 135
- 216
0
votes
2 answers
Using qsort to sort unsigned integers
The program that I am working on takes a file and parses it line by line then changes each line into a uint32_t and adds it into an array. From there I am supposed to sort the array with qsort().
I wrote my program how I thought it should be but…
Dan Bradbury
- 2,071
- 2
- 21
- 27
0
votes
1 answer
Converting uint32_t to network byte order
i'm doing stuff for my studies, so yeah, it's homework.
First: I got a working Java Server Application, i also had this client application i'm writing in c now working in java.
Simple as is, i fail at sending the uint32_t to my java server.
So let's…
Daniel
- 157
- 2
- 12
0
votes
1 answer
Arduino String.toInt() function wrongly converts to uint32_t
I have a webserver running on an ESP32-Wrover_E.
A user's session id is stored in cookie format.
This session ID is coming from esp_random() function which returns an uint32_t type integer. It is being set on log in. When a user goes to any page or…
Dr.Random
- 430
- 3
- 16
0
votes
1 answer
C++ Map with key and value data type as uint32_t gives error
On using uint32_t data type for the key and value in a map. I am getting an error no known conversion for argument.
Here is what I tried
int main() {
uint32_t a = 5;
uint32_t b = 9;
map Mapper;
…
H Kumar
- 37
- 6
0
votes
2 answers
Converting uint32_t to binary in C
The main problem I'm having is to read out values in binary in C. Python and C# had some really quick/easy functions to do this, I found topic about how to do it in C++, I found topic about how to convert int to binary in C, but not how to convert…
loulou
- 21
- 4
0
votes
1 answer
What does buffer overrun error in uint32_t mean?
I'm trying to write ARGB color data into a uint32_t variable through a for loop. I get an error:
invalid write to m_imagedata[i][1],wriable range is 0 to 0
if (!render){
uint32_t* m_imagedata = nullptr;
}
else{
m_imagedata = new…
0
votes
1 answer
How to cast char* to uint32_t in C?
I have an array of char* defined as char *data_ptr = "ABCDEFGHIJKLMNOPQRSTUVWX". Also, I have a write buffer declared as static uint32_t wr_buff[32].
I iteratively extract 4 bytes from the array and put them in a substring of char defined as char…
lll
- 1
- 6
0
votes
2 answers
print uint32_t to string in C but not it's literally value
I'm reading an image file and I want to show the format it was compressed in console.
In example, I read this: format = 861165636 (0x33545844), as my CPU reads and writes in Little Endian I do format = __builtin_bswap32(format); so now format =…
0
votes
1 answer
Read and write pcd file without PCL (Point Cloud library)
I'm trying to write a program that reads and writes PCL files without PCD (Point Cloud library),
I can read the positions of each point without a problem,
but the RGB value is written in uint32_t and I do not know how to read this format and…
Guy Perry
- 11
- 1
0
votes
1 answer
How to initialize and then later assign values to a uint32_t array in C++
I'm using C++ in Arduino to create a patternArray of random uint32_t values (colors), and compare those colors against colors a user enters via button from a predefined colorArray. The problem is that I need to initialize a random seed before I…
mheavers
- 29,530
- 58
- 194
- 315