C 库函数 - 随笔分类 - 无忧consume

cmath (math.h)

摘要：headercmath (math.h)C numerics librarycmathdeclares a set of functions to compute common mathematical operations and transformations:Trigonometric functions:cosCompute cosine(function)sinCompute sine(function)tanCompute tangent(function)acosCompute arc cosine(function)asinCompute arc sine(function)a 阅读全文

posted @ 2012-03-15 20:40 无忧consume 阅读(704) 评论(0) 推荐(0) |

cstring (string.h)

摘要：headercstring (string.h)C StringsThis header file defines several functions to manipulateC stringsand arrays.FunctionsCopying:memcpyCopy block of memory(function)memmoveMove block of memory(function )strcpyCopy string(function)strncpyCopy characters from string(function)Concatenation:strcatConcatena 阅读全文

posted @ 2012-03-15 20:39 无忧consume 阅读(205) 评论(0) 推荐(0) |

cstdlib (stdlib.h)

摘要：headercstdlib (stdlib.h)C Standard General Utilities LibraryThis header defines several general purpose functions, including dynamic memory management, random number generation, communication with the environment, integer arthmetics, searching, sorting and converting.FunctionsString conversion:atofC 阅读全文

posted @ 2012-03-15 20:39 无忧consume 阅读(508) 评论(0) 推荐(0) |

stdio.h

摘要：headercstdio (stdio.h)C library to perform Input/Output operationsInput and Output operations can also be performed in C++ using theCStandardInput andOutput Library (cstdio, known asstdio.hin the C language). This library uses what are calledstreamsto operate with physical devices such as keyboards, 阅读全文

posted @ 2012-03-15 20:38 无忧consume 阅读(313) 评论(0) 推荐(0) |

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随笔分类 - C 库函数

cmath (math.h)

cstring (string.h)

cstdlib (stdlib.h)

stdio.h