Dev C++ Srand

1. C++ How To Use Srand
2. C++ Srand 1 10
3. Dev C++ Srand
4. Dev C++ Random

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C++ How To Use Srand

CProgrammingServer Side Programming

Srand.; 2 minutes to read; In this article The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com. The latest version of this topic can be found at srand. Sets the starting seed value for the pseudorandom number generator. The function accesses and modifies internal state objects, which may cause data races with concurrent calls to rand or srand. Some libraries provide an alternative function of rand that explicitly avoids this kind of data race: randr (non-portable). C library implementations are allowed to guarantee no data races for calling this function.

rand()

การเขียนโปรแกรมสุ่มเลข หรือrandom ในภาษา c, c จะใช้ 2 function หลักๆคือ.

The function rand() is used to generate the pseudo random number. It returns an integer value and its range is from 0 to rand_max i.e 32767.

Here is the syntax of rand() in C language,

Here is an example of rand() in C language,

Example

Output

srand()

The function srand() is used to initialize the generated pseudo random number by rand() function. It does not return anything.

Here is the syntax of srand() in C language,

Here is an example of srand() in C language,

Example

Output

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The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.

The latest version of this topic can be found at srand.

Sets the starting seed value for the pseudorandom number generator.

Syntax

Parameters

seed
Seed for pseudorandom number generation

Remarks

The srand function sets the starting point for generating a series of pseudorandom integers in the current thread. To reinitialize the generator to create the same sequence of results, call the srand function and use the same seed argument again. Any other value for seed sets the generator to a different starting point in the pseudorandom sequence. rand retrieves the pseudorandom numbers that are generated. Calling rand before any call to srand generates the same sequence as calling srand with seed passed as 1.

Requirements

Routine	Required header
srand	<stdlib.h>

For additional compatibility information, see Compatibility in the Introduction.

Example

C++ Srand 1 10

See the example for rand.

.NET Framework Equivalent

Dev C++ Srand

See Also

Dev C++ Random

Floating-Point Support
rand