C
1. C c
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ID: 5479d877-2bd1-41d9-8409-1ff0436fcc59// gcc -O0 -g hello.c
#include <stdio.h>
int main(int argc, char* argv[])
{
printf("hello\n");
return 0;
}
1.1. Syntax
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ID: 0157d160-7eeb-4e01-ab69-43000e09cc3cCREATED: <2026-04-24 Fri 12:06>
1.1.1. Statements
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ID: 9132ff22-4c85-4aed-ab5c-1bd777648927CREATED: <2026-04-24 Fri 12:04>
A statement specifies computations to be done for effect; it does not produce a value, as an expression would. In general a statement ends with a semicolon (‘;’), but blocks (which are statements, more or less) are an exception to that rule.
- Duff's Device
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ID: f9a7443a-a362-4d47-b3d3-045fdd6c3c57
CREATED: <2026-04-24 Fri 12:06>
1.1.2. Preprocessor
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ID: 6c5a4df9-612c-4591-bfe9-7904cc03fb4cCREATED: <2026-04-24 Fri 12:08>
- Macros
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ID: 93cddd0e-4189-4e78-a0e5-b3ceaf6b7d6e
CREATED: <2025-03-07 Fri 18:44>The C preprocessor is unhygienic (good) and fairly simple (at least compared to C)
1.1.3. Types
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ID: 3aa8b635-2c81-4992-8e65-fb2b0dee7b06CREATED: <2025-09-29 Mon 17:58>
1.2. libc
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ID: d77ecb14-ecd4-4432-af2e-f431bf9ea18bCREATED: <2025-03-07 Fri 12:32>
1.2.1. glibc
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ID: 1770afe7-1224-486b-bd35-2c24bb526ba7CREATED: <2025-04-06 Sun 17:47>
The GNU C Library
- malloc
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ID: e9bb191e-5226-4bff-b2ea-94716dac48e7
CREATED: <2025-04-06 Sun 17:50>
1.2.2. nostd
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ID: c7e3f469-f1c9-4b9f-a104-72ae91abab21CREATED: <2025-03-07 Fri 12:33>
Information about compiling without libc.
- compile with
gcc -nostdlib -m64(64-bit)
// Tell the compiler incoming stack alignment is not RSP%16==8 or ESP%16==12
__attribute__((force_align_arg_pointer))
void _start() {
/* call main(), etc */
/* exit system call */
// 32-bit
// asm("movl $1,%eax;xorl %ebx,%ebx;int $0x80");
// 64-bit
asm("mov rax,60; mov rdi,0; syscall");
__builtin_unreachable(); // tell the compiler to make sure side effects are done before the asm statement
}
1.3. Articles
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ID: ffb7ba79-a805-43b3-b304-0575005e19e1CREATED: <2025-04-11 Fri 21:28>
1.4. Libraries
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ID: b0ff5843-38de-4bd9-800a-728391dafc02CREATED: <2025-03-07 Fri 12:32>
1.4.1. libjpeg-turbo
1.4.2. LAPACKE
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ID: 7f29ca19-b76c-40c0-981c-41c4034ecf4cCREATED: <2025-05-08 Thu 20:22>
Part of LAPACK
1.4.3. libarchive
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ID: 8abf5410-165d-43c5-a37b-fb9be29f227eCREATED: <2026-05-04 Mon 19:44>
C library and command-line tools for reading and writing tar, cpio, zip, ISO, and other archive formats.
2. CPP cpp
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ID: be1c5802-61bd-4b32-9566-03cef321236e2.1. Libraries
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ID: ad099ae1-d55f-49f4-99c7-de92ced85488CREATED: <2025-03-02 Sun 20:45>
2.1.1. Boost
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ID: 2b62b530-80c0-4a78-828e-509ac78dbfd9CREATED: <2025-03-02 Sun 20:45>
2.1.2. Adaptagrams graph
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ID: d7c12344-b1ae-4bf2-a620-bc99f8e71e29CREATED: <2025-03-02 Sun 20:45>
2.2. CUDA nvidia gpu
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ID: a531e912-55ab-4889-806f-475c0316713eCREATED: <2025-03-02 Sun 21:29>
3. Objective-C
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ID: 3021fa48-a98a-471f-896c-db237e97192bCREATED: <2025-03-03 Mon 20:10>