# <tgmath.h>

**[<tgmath.h>](https://en.cppreference.com/w/c/header/tgmath)** provides type-generic math wrappers (C99) so you can write `sqrt` instead of `sqrtf`/`sqrt`/`sqrtl`. The dispatcher selects the right function based on argument type at compile time.

Precision-critical code often prefers explicit suffixes for clarity.

## Example

This example shows type-generic dispatch to different precision functions.

```c
// compile: gcc -o tgmathexample tgmathexample.c -lm
// run: ./tgmathexample
// description: type-generic dispatch to float/double/long-double variants

#include <tgmath.h>
#include <stdio.h>

int main() {
    float f = 2.0f;
    double d = 2.0;
    long double ld = 2.0L;
    
    printf("sqrt(float)       = %.10f\n", (double)sqrt(f));
    printf("sqrt(double)      = %.10f\n", sqrt(d));
    printf("sqrt(long double) = %.10Lf\n", sqrt(ld));
    
    return 0;
}
```