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MPLAB® XC32 C/C++ Compiler User's Guide for PIC32C/SAM MCUs
MPLAB® XC32 C/C++ Compiler User's Guide for PIC32C/SAM MCUs
  1. Home
  2. 3 How To's
  3. 3.3 Writing Source Code
  4. 3.3.1 C Language Specifics

  • Notice to Development Tools Customers
  • 1 Preface
  • 2 Compiler Overview
  • 3 How To's
    • 3.1 Installing and Activating the Compiler
    • 3.2 Invoking the Compiler
    • 3.3 Writing Source Code
      • 3.3.1 C Language Specifics
        • 3.3.1.1 When Should I Cast Expressions?
        • 3.3.1.2 Can Implicit Type Conversions Change The Expected Results Of My Expressions?
        • 3.3.1.3 How Do I Enter Non-English Characters Into My Program?
        • 3.3.1.4 How Can I Use A Variable Defined In Another Source File?
        • 3.3.1.5 How Do I Port My Code To Different Device Architectures?
      • 3.3.2 Device-Specific Features
      • 3.3.3 Memory Allocation
      • 3.3.4 Variables
      • 3.3.5 Functions
      • 3.3.6 Interrupts
      • 3.3.7 Assembly Code
    • 3.4 Getting My Application To Do What I Want
    • 3.5 Understanding the Compilation Process
    • 3.6 Fixing Code That Does Not Work
  • 4 XC32 Toolchain and MPLAB X IDE
  • 5 Command-line Driver
  • 6 C Standard Issues
  • 7 Device-Related Features
  • 8 Supported Data Types and Variables
  • 9 Memory Allocation and Access
  • 10 Chip-Level Security and Arm® TrustZone® Technology
  • 11 Floating-point Support
  • 12 Fixed-Point Arithmetic Support
  • 13 Operators and Statements
  • 14 Register Usage
  • 15 Stack
  • 16 Functions
  • 17 Interrupts
  • 18 Main, Runtime Start-up and Reset
  • 19 Libraries
  • 20 Mixing C/C++ and Assembly Language
  • 21 Optimizations
  • 22 Preprocessing
  • 23 Linking Programs
  • 24 Implementation-Defined Behavior
  • 25 C++ Implementation-Defined Behavior
  • 26 Built-in Functions
  • 27 ASCII Character Set
  • 28 Document Revision History
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3.3.1 C Language Specifics

This section discusses source code issues that are directly relates to the C language itself but which are commonly asked.

  • When Should I Cast Expressions?
  • Can Implicit Type Conversions Change The Expected Results Of My Expressions?
  • How Do I Enter Non-English Characters Into My Program?
  • How Can I Use A Variable Defined In Another Source File?
  • How Do I Port My Code To Different Device Architectures?

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