printf

Description

Print a message to the debug output.

Signature

void printf<each T>(
    NativeString format,
    printf args);

Generic Parameters

T

The variadic type pack parameter for the arguments to be printed.

Parameters

format : NativeString

The format string.

args : printf

(optional) The arguments to be printed.

Remarks

The function maps to printf for HLSL, CPU and CUDA targets, and maps to OpDebugPrintf for SPIR-V target, and maps to debugPrintfEXT for GLSL target. Depending on the target and execution environment, the function may have no effect.

Example

void test(int x, float y)
{
    printf("hello world!\n");
    printf(R"(x = "%d", y = "%f")", x, y);
}

Availability and Requirements

Defined for the following targets:

hlsl

Available in all stages.

glsl

Available in all stages.

cpp

Available in all stages.

cuda

Available in all stages.

spirv

Available in all stages.

Requires capability: SPV_KHR_non_semantic_info.