IPT-C2H-NIOS Altera, IPT-C2H-NIOS Datasheet - Page 131

• Manufacturer Part Number: IPT-C2H-NIOS
• Description: C2H COMPILER FOR NIOS II
• Manufacturer: Altera
• Series: Nios®IIr
• Type: Nios IIr

Specifications of IPT-C2H-NIOS

• Function: C to Hardware Compiler
• License: Initial License
• Software Application: IP CORE, NIOS Processor And Functions
• Core Architecture: FPGA
• Core Sub-architecture: Cyclone
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: Not applicable / Not applicable

Example 7–2. Recursive Implementation of Factorial Function
int factorial(int x)
{
}
Altera Corporation
November 2009
if (x>1) return factorial(x-1) * x;
else return x;
Function Prototypes (Section 6.9.1, Paragraph 14)
A function prototype cannot be encapsulated within a function.
For example, the following code is not supported:
The C2H Compiler supports separate declarations of functions, as
follows:
Recursive Function Calls (Section 6.5.2.2, Paragraph 11)
Recursive function calls are not supported.
Example 7–2
factorial function.
You can replace recursive functions with equivalent code that
implements the function without using recursion.
equivalent implementation of the factorial function without using
recursion.
void doDMA(int a)
{
}
void analyze(int i);
void doDMA(int a)
{
}
void analyze(int i);
...
...
shows an unsupported recursive implementation of the
9.1
ANSI C Compliance and Restrictions
Nios II C2H Compiler User Guide
Example 7–3
shows an
7–7