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c

C programming language concepts and practices

ProgrammingStack and Heap in Programming: Memory Location

Learn what stack and heap are in programming, their physical location in computer memory, differences in management by OS or runtime, sizes, scope, and why stack is faster. Detailed guide with examples.

1 answer• 4 views
ProgrammingUnfreed Memory in C: OS Cleanup vs Best Practices

Exploring what happens when malloc'd memory isn't freed before C program termination. OS memory reclamation vs proper memory management practices for simple vs long-running applications.

1 answer• 1 view
ProgrammingC Constants: static const vs #define vs enum Differences

Learn key differences between static const, #define, and enum for constants in C programming. Type safety, scope, and debugging comparisons.

1 answer• 1 view
ProgrammingProblems with feof() in C File Reading: Why while(!feof(fp)) is Wrong

Learn why using feof() to control file reading loops in C programming causes problems with duplicate records and invalid data processing. Discover proper alternatives for reading files until EOF.

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ProgrammingCompound Literals as Struct Initializers in C

Learn how compound literals work as struct initializers in C, their lifetime rules, and C23 changes. Understand temporary object guarantees.

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ProgrammingCalculate Used Blocks from Overflowing uint32 Counters

Fix counter overflow issues to accurately compute used memory blocks in a 20k pool using uint32_t alloc_num and free counters. Handle wrapping, sum overflow, edge cases, and concurrency for reliable counter memory tracking.

1 answer• 1 view
ProgrammingC nan(tagp) string rationale and IEEE 754 payloads

Why C's nan(const char *tagp) accepts a string: WG14 rationale, how tagp maps to IEEE 754 QNaN payloads, common parsing strategies and portability implications.

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ProgrammingFix C Compiler Stray '\342' & Long Double Errors

Resolve C compiler errors like stray '\342' in program, exponent has no digits for long double literals (e−27), invalid ^ operator, and printf issues. Use ASCII hyphens, powl(), %Lf formatting for clean GCC compilation.

1 answer• 1 view
ProgrammingC Floating-Point == Comparison Accuracy with 0.1 Steps

Learn why C's == operator fails for floating-point numbers like 0.1 increments due to binary precision. Use epsilon comparison, rounding, fixed-point scaling, and GSL for reliable equality checks and numerical solving.

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ProgrammingPrint Name in C: Alternatives to printf (putchar, puts)

Discover alternative ways to print your name in C without printf: putchar loops, puts/fputs, write calls, ASCII codes, macros. Fix common issues, pros/cons, and beginner tips for print c and output in c basics.

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ProgrammingC Integer Literal Promotion: Windows vs Linux Diff

Why does C integer literal promotion for 2654435769 differ between Windows (LLP64) and Linux (LP64)? Explains signed vs unsigned rules, truncation in uint32_t mul, and fix with 'u' suffix for cross-platform code.

1 answer• 1 view