Sequence point
A sequence point is a point in C program evaluation at which specified preceding evaluations and side effects are complete before subsequent evaluation proceeds.
Modern C
A sequence point is a point in C program evaluation at which specified preceding evaluations are complete before subsequent evaluation proceeds.
- How it is used
- Clarifies how C orders evaluations while permitting optimizing compilers and unconstrained operand evaluation.
- How deep it goes
- Defines serialization, distinguishes it from evaluation order, and works through function-call outcomes without developing later sequencing rules.
- Examples
- Uses two modifying add calls inside printf to demonstrate the outputs produced by alternative evaluation orders.
- What you can do after
- Evaluate C expressions by separating guaranteed sequencing from an order the language leaves unspecified.
Modern C, Third Edition
A sequence point is a point in C execution at which the language requires specified evaluations and side effects to be completed or ordered relative to other evaluations.
- How it is used
- Explains how C orders evaluations and side effects while permitting flexible expression evaluation.
- How deep it goes
- Defines serialization and demonstrates alternative outcomes, while deferring additional sequencing rules beyond sequence points.
- Examples
- Uses modifying add calls passed to printf and shows two permitted final-value outputs.
- What you can do after
- Evaluate which execution orders and results remain permitted when expressions are unsequenced.
Related concepts
- serializationimplements · Serialization is the coordination of potentially concurrent operations so that specified operations occur one at a time in a defined order.
- callproduced by · A function call is an operation or expression that invokes a function or other callable, optionally supplies arguments, and initiates its execution.
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